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Finding the Fourth Proportional to 343,951.80, 514,890.90 and 302,479.80

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Solution

The fourth proportional to 343,951.80, 514,890.90 and 302,479.80 is: 452,807.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,951.80 : 514,890.90 = 302,479.80 : x
  2. Step 2: Convert to fraction form
    343,951.80/514,890.90 = 302,479.80/x
  3. Step 3: Cross multiply
    343,951.80x = 514,890.90 × 302,479.80
  4. Step 4: Simplify right side
    343,951.80x = 155,744,096,453.82
  5. Step 5: Solve for x
    x = 155,744,096,453.82/343,951.80
  6. Step 6: Final answer
    x = 452,807.91

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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.