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Finding the Fourth Proportional to 268,242.68, 402,301.60 and 99,842.31

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Solution

The fourth proportional to 268,242.68, 402,301.60 and 99,842.31 is: 149,740.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,242.68 : 402,301.60 = 99,842.31 : x
  2. Step 2: Convert to fraction form
    268,242.68/402,301.60 = 99,842.31/x
  3. Step 3: Cross multiply
    268,242.68x = 402,301.60 × 99,842.31
  4. Step 4: Simplify right side
    268,242.68x = 40,166,722,319.72
  5. Step 5: Solve for x
    x = 40,166,722,319.72/268,242.68
  6. Step 6: Final answer
    x = 149,740.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.