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Finding the Fourth Proportional to 388,900.13, 583,350.21 and 93,412.13

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Solution

The fourth proportional to 388,900.13, 583,350.21 and 93,412.13 is: 140,118.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,900.13 : 583,350.21 = 93,412.13 : x
  2. Step 2: Convert to fraction form
    388,900.13/583,350.21 = 93,412.13/x
  3. Step 3: Cross multiply
    388,900.13x = 583,350.21 × 93,412.13
  4. Step 4: Simplify right side
    388,900.13x = 54,491,982,735.30
  5. Step 5: Solve for x
    x = 54,491,982,735.30/388,900.13
  6. Step 6: Final answer
    x = 140,118.19

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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.