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Finding the Fourth Proportional to 486,052.92, 729,079.38 and 153,603

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Solution

The fourth proportional to 486,052.92, 729,079.38 and 153,603 is: 230,404.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,052.92 : 729,079.38 = 153,603 : x
  2. Step 2: Convert to fraction form
    486,052.92/729,079.38 = 153,603/x
  3. Step 3: Cross multiply
    486,052.92x = 729,079.38 × 153,603
  4. Step 4: Simplify right side
    486,052.92x = 111,988,780,006.14
  5. Step 5: Solve for x
    x = 111,988,780,006.14/486,052.92
  6. Step 6: Final answer
    x = 230,404.50

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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.