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Finding the Fourth Proportional to 343,018.32, 514,527.68 and 143,229.79

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Solution

The fourth proportional to 343,018.32, 514,527.68 and 143,229.79 is: 214,844.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,018.32 : 514,527.68 = 143,229.79 : x
  2. Step 2: Convert to fraction form
    343,018.32/514,527.68 = 143,229.79/x
  3. Step 3: Cross multiply
    343,018.32x = 514,527.68 × 143,229.79
  4. Step 4: Simplify right side
    343,018.32x = 73,695,691,555.59
  5. Step 5: Solve for x
    x = 73,695,691,555.59/343,018.32
  6. Step 6: Final answer
    x = 214,844.77

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1.5x scale

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.