Home / 206,720.08-310,023.40-56,925.20

Finding the Fourth Proportional to 206,720.08, 310,023.40 and 56,925.20

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Solution

The fourth proportional to 206,720.08, 310,023.40 and 56,925.20 is: 85,372.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,720.08 : 310,023.40 = 56,925.20 : x
  2. Step 2: Convert to fraction form
    206,720.08/310,023.40 = 56,925.20/x
  3. Step 3: Cross multiply
    206,720.08x = 310,023.40 × 56,925.20
  4. Step 4: Simplify right side
    206,720.08x = 17,648,144,049.68
  5. Step 5: Solve for x
    x = 17,648,144,049.68/206,720.08
  6. Step 6: Final answer
    x = 85,372.18

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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.