Home / 318,437.85-477,715.09-131,347.29

Finding the Fourth Proportional to 318,437.85, 477,715.09 and 131,347.29

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Solution

The fourth proportional to 318,437.85, 477,715.09 and 131,347.29 is: 197,044.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,437.85 : 477,715.09 = 131,347.29 : x
  2. Step 2: Convert to fraction form
    318,437.85/477,715.09 = 131,347.29/x
  3. Step 3: Cross multiply
    318,437.85x = 477,715.09 × 131,347.29
  4. Step 4: Simplify right side
    318,437.85x = 62,746,579,746.66
  5. Step 5: Solve for x
    x = 62,746,579,746.66/318,437.85
  6. Step 6: Final answer
    x = 197,044.98

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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.