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Finding the Fourth Proportional to 343,866.40, 514,815.45 and 304,500.40

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Solution

The fourth proportional to 343,866.40, 514,815.45 and 304,500.40 is: 455,879.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,866.40 : 514,815.45 = 304,500.40 : x
  2. Step 2: Convert to fraction form
    343,866.40/514,815.45 = 304,500.40/x
  3. Step 3: Cross multiply
    343,866.40x = 514,815.45 × 304,500.40
  4. Step 4: Simplify right side
    343,866.40x = 156,761,510,451.18
  5. Step 5: Solve for x
    x = 156,761,510,451.18/343,866.40
  6. Step 6: Final answer
    x = 455,879.12

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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.