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Finding the Fourth Proportional to 404,737.68, 607,135.86 and 155,419.68

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Solution

The fourth proportional to 404,737.68, 607,135.86 and 155,419.68 is: 233,140.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,737.68 : 607,135.86 = 155,419.68 : x
  2. Step 2: Convert to fraction form
    404,737.68/607,135.86 = 155,419.68/x
  3. Step 3: Cross multiply
    404,737.68x = 607,135.86 × 155,419.68
  4. Step 4: Simplify right side
    404,737.68x = 94,360,861,077.72
  5. Step 5: Solve for x
    x = 94,360,861,077.72/404,737.68
  6. Step 6: Final answer
    x = 233,140.79

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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.