Home / 347,312.16-520,614-136,864.80

Finding the Fourth Proportional to 347,312.16, 520,614 and 136,864.80

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Solution

The fourth proportional to 347,312.16, 520,614 and 136,864.80 is: 205,157.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,312.16 : 520,614 = 136,864.80 : x
  2. Step 2: Convert to fraction form
    347,312.16/520,614 = 136,864.80/x
  3. Step 3: Cross multiply
    347,312.16x = 520,614 × 136,864.80
  4. Step 4: Simplify right side
    347,312.16x = 71,253,730,987.20
  5. Step 5: Solve for x
    x = 71,253,730,987.20/347,312.16
  6. Step 6: Final answer
    x = 205,157.61

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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.