Home / 440,068.60-660,540.30-215,682.40

Finding the Fourth Proportional to 440,068.60, 660,540.30 and 215,682.40

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Solution

The fourth proportional to 440,068.60, 660,540.30 and 215,682.40 is: 323,737.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,068.60 : 660,540.30 = 215,682.40 : x
  2. Step 2: Convert to fraction form
    440,068.60/660,540.30 = 215,682.40/x
  3. Step 3: Cross multiply
    440,068.60x = 660,540.30 × 215,682.40
  4. Step 4: Simplify right side
    440,068.60x = 142,466,917,200.72
  5. Step 5: Solve for x
    x = 142,466,917,200.72/440,068.60
  6. Step 6: Final answer
    x = 323,737.97

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1.5x scale

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.