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Finding the Fourth Proportional to 343,120.16, 514,500.24 and 143,403.68

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Solution

The fourth proportional to 343,120.16, 514,500.24 and 143,403.68 is: 215,030.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,120.16 : 514,500.24 = 143,403.68 : x
  2. Step 2: Convert to fraction form
    343,120.16/514,500.24 = 143,403.68/x
  3. Step 3: Cross multiply
    343,120.16x = 514,500.24 × 143,403.68
  4. Step 4: Simplify right side
    343,120.16x = 73,781,227,776.88
  5. Step 5: Solve for x
    x = 73,781,227,776.88/343,120.16
  6. Step 6: Final answer
    x = 215,030.29

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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.