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Finding the Fourth Proportional to 388,813.13, 583,219.70 and 93,325.13

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Solution

The fourth proportional to 388,813.13, 583,219.70 and 93,325.13 is: 139,987.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,813.13 : 583,219.70 = 93,325.13 : x
  2. Step 2: Convert to fraction form
    388,813.13/583,219.70 = 93,325.13/x
  3. Step 3: Cross multiply
    388,813.13x = 583,219.70 × 93,325.13
  4. Step 4: Simplify right side
    388,813.13x = 54,429,050,938.34
  5. Step 5: Solve for x
    x = 54,429,050,938.34/388,813.13
  6. Step 6: Final answer
    x = 139,987.69

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Similar ratio
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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.