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Finding the Fourth Proportional to 498,883.79, 748,374.78 and 134,140.86

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Solution

The fourth proportional to 498,883.79, 748,374.78 and 134,140.86 is: 201,224.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,883.79 : 748,374.78 = 134,140.86 : x
  2. Step 2: Convert to fraction form
    498,883.79/748,374.78 = 134,140.86/x
  3. Step 3: Cross multiply
    498,883.79x = 748,374.78 × 134,140.86
  4. Step 4: Simplify right side
    498,883.79x = 100,387,636,591.51
  5. Step 5: Solve for x
    x = 100,387,636,591.51/498,883.79
  6. Step 6: Final answer
    x = 201,224.49

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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.