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Finding the Fourth Proportional to 255,636.62, 352,771.47 and 142,456.46

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Solution

The fourth proportional to 255,636.62, 352,771.47 and 142,456.46 is: 196,585.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,636.62 : 352,771.47 = 142,456.46 : x
  2. Step 2: Convert to fraction form
    255,636.62/352,771.47 = 142,456.46/x
  3. Step 3: Cross multiply
    255,636.62x = 352,771.47 × 142,456.46
  4. Step 4: Simplify right side
    255,636.62x = 50,254,574,805.20
  5. Step 5: Solve for x
    x = 50,254,574,805.20/255,636.62
  6. Step 6: Final answer
    x = 196,585.98

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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.