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Finding the Fourth Proportional to 388,672.56, 583,319.88 and 201,737.52

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Solution

The fourth proportional to 388,672.56, 583,319.88 and 201,737.52 is: 302,767.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,672.56 : 583,319.88 = 201,737.52 : x
  2. Step 2: Convert to fraction form
    388,672.56/583,319.88 = 201,737.52/x
  3. Step 3: Cross multiply
    388,672.56x = 583,319.88 × 201,737.52
  4. Step 4: Simplify right side
    388,672.56x = 117,677,505,957.90
  5. Step 5: Solve for x
    x = 117,677,505,957.90/388,672.56
  6. Step 6: Final answer
    x = 302,767.72

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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.