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Finding the Fourth Proportional to 384,328.80, 575,132.40 and 334,951.20

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Solution

The fourth proportional to 384,328.80, 575,132.40 and 334,951.20 is: 501,240.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,328.80 : 575,132.40 = 334,951.20 : x
  2. Step 2: Convert to fraction form
    384,328.80/575,132.40 = 334,951.20/x
  3. Step 3: Cross multiply
    384,328.80x = 575,132.40 × 334,951.20
  4. Step 4: Simplify right side
    384,328.80x = 192,641,287,538.88
  5. Step 5: Solve for x
    x = 192,641,287,538.88/384,328.80
  6. Step 6: Final answer
    x = 501,240.83

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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.