Home / 291,630.28-437,635.50-220,402.12

Finding the Fourth Proportional to 291,630.28, 437,635.50 and 220,402.12

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Solution

The fourth proportional to 291,630.28, 437,635.50 and 220,402.12 is: 330,746.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,630.28 : 437,635.50 = 220,402.12 : x
  2. Step 2: Convert to fraction form
    291,630.28/437,635.50 = 220,402.12/x
  3. Step 3: Cross multiply
    291,630.28x = 437,635.50 × 220,402.12
  4. Step 4: Simplify right side
    291,630.28x = 96,455,791,987.26
  5. Step 5: Solve for x
    x = 96,455,791,987.26/291,630.28
  6. Step 6: Final answer
    x = 330,746.83

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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.