Home / 257,180.04-354,909.51-142,456.20

Finding the Fourth Proportional to 257,180.04, 354,909.51 and 142,456.20

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Solution

The fourth proportional to 257,180.04, 354,909.51 and 142,456.20 is: 196,590.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,180.04 : 354,909.51 = 142,456.20 : x
  2. Step 2: Convert to fraction form
    257,180.04/354,909.51 = 142,456.20/x
  3. Step 3: Cross multiply
    257,180.04x = 354,909.51 × 142,456.20
  4. Step 4: Simplify right side
    257,180.04x = 50,559,060,138.46
  5. Step 5: Solve for x
    x = 50,559,060,138.46/257,180.04
  6. Step 6: Final answer
    x = 196,590.14

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.