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Finding the Fourth Proportional to 388,899, 583,329 and 152,285.04

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Solution

The fourth proportional to 388,899, 583,329 and 152,285.04 is: 228,419.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,899 : 583,329 = 152,285.04 : x
  2. Step 2: Convert to fraction form
    388,899/583,329 = 152,285.04/x
  3. Step 3: Cross multiply
    388,899x = 583,329 × 152,285.04
  4. Step 4: Simplify right side
    388,899x = 88,832,280,098.16
  5. Step 5: Solve for x
    x = 88,832,280,098.16/388,899
  6. Step 6: Final answer
    x = 228,419.92

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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.