Home / 317,638.98-476,331.30-140,019.75

Finding the Fourth Proportional to 317,638.98, 476,331.30 and 140,019.75

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Solution

The fourth proportional to 317,638.98, 476,331.30 and 140,019.75 is: 209,973.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,638.98 : 476,331.30 = 140,019.75 : x
  2. Step 2: Convert to fraction form
    317,638.98/476,331.30 = 140,019.75/x
  3. Step 3: Cross multiply
    317,638.98x = 476,331.30 × 140,019.75
  4. Step 4: Simplify right side
    317,638.98x = 66,695,789,543.18
  5. Step 5: Solve for x
    x = 66,695,789,543.18/317,638.98
  6. Step 6: Final answer
    x = 209,973.57

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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.