Home / 243,496.20-336,058.16-140,128.28

Finding the Fourth Proportional to 243,496.20, 336,058.16 and 140,128.28

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Solution

The fourth proportional to 243,496.20, 336,058.16 and 140,128.28 is: 193,396.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,496.20 : 336,058.16 = 140,128.28 : x
  2. Step 2: Convert to fraction form
    243,496.20/336,058.16 = 140,128.28/x
  3. Step 3: Cross multiply
    243,496.20x = 336,058.16 × 140,128.28
  4. Step 4: Simplify right side
    243,496.20x = 47,091,251,940.76
  5. Step 5: Solve for x
    x = 47,091,251,940.76/243,496.20
  6. Step 6: Final answer
    x = 193,396.25

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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.