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Finding the Fourth Proportional to 543,167.80, 814,751.70 and 291,225.40

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Solution

The fourth proportional to 543,167.80, 814,751.70 and 291,225.40 is: 436,838.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,167.80 : 814,751.70 = 291,225.40 : x
  2. Step 2: Convert to fraction form
    543,167.80/814,751.70 = 291,225.40/x
  3. Step 3: Cross multiply
    543,167.80x = 814,751.70 × 291,225.40
  4. Step 4: Simplify right side
    543,167.80x = 237,276,389,733.18
  5. Step 5: Solve for x
    x = 237,276,389,733.18/543,167.80
  6. Step 6: Final answer
    x = 436,838.10

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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.