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Finding the Fourth Proportional to 343,141.92, 514,810.08 and 143,557.92

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Solution

The fourth proportional to 343,141.92, 514,810.08 and 143,557.92 is: 215,377.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,141.92 : 514,810.08 = 143,557.92 : x
  2. Step 2: Convert to fraction form
    343,141.92/514,810.08 = 143,557.92/x
  3. Step 3: Cross multiply
    343,141.92x = 514,810.08 × 143,557.92
  4. Step 4: Simplify right side
    343,141.92x = 73,905,064,279.83
  5. Step 5: Solve for x
    x = 73,905,064,279.83/343,141.92
  6. Step 6: Final answer
    x = 215,377.54

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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.