Home / 347,461.20-521,216.10-137,071.80

Finding the Fourth Proportional to 347,461.20, 521,216.10 and 137,071.80

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Solution

The fourth proportional to 347,461.20, 521,216.10 and 137,071.80 is: 205,617.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,461.20 : 521,216.10 = 137,071.80 : x
  2. Step 2: Convert to fraction form
    347,461.20/521,216.10 = 137,071.80/x
  3. Step 3: Cross multiply
    347,461.20x = 521,216.10 × 137,071.80
  4. Step 4: Simplify right side
    347,461.20x = 71,444,029,015.98
  5. Step 5: Solve for x
    x = 71,444,029,015.98/347,461.20
  6. Step 6: Final answer
    x = 205,617.29

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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.