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Finding the Fourth Proportional to 343,294.80, 514,468.20 and 247,763.40

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Solution

The fourth proportional to 343,294.80, 514,468.20 and 247,763.40 is: 371,303.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,294.80 : 514,468.20 = 247,763.40 : x
  2. Step 2: Convert to fraction form
    343,294.80/514,468.20 = 247,763.40/x
  3. Step 3: Cross multiply
    343,294.80x = 514,468.20 × 247,763.40
  4. Step 4: Simplify right side
    343,294.80x = 127,466,390,423.88
  5. Step 5: Solve for x
    x = 127,466,390,423.88/343,294.80
  6. Step 6: Final answer
    x = 371,303.00

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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.