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Finding the Fourth Proportional to 388,948.80, 583,423.20 and 93,460.80

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Solution

The fourth proportional to 388,948.80, 583,423.20 and 93,460.80 is: 140,191.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,948.80 : 583,423.20 = 93,460.80 : x
  2. Step 2: Convert to fraction form
    388,948.80/583,423.20 = 93,460.80/x
  3. Step 3: Cross multiply
    388,948.80x = 583,423.20 × 93,460.80
  4. Step 4: Simplify right side
    388,948.80x = 54,527,199,010.56
  5. Step 5: Solve for x
    x = 54,527,199,010.56/388,948.80
  6. Step 6: Final answer
    x = 140,191.20

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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.