Home / 330,235.20-454,688.64-291,432.96

Finding the Fourth Proportional to 330,235.20, 454,688.64 and 291,432.96

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Solution

The fourth proportional to 330,235.20, 454,688.64 and 291,432.96 is: 401,263.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,235.20 : 454,688.64 = 291,432.96 : x
  2. Step 2: Convert to fraction form
    330,235.20/454,688.64 = 291,432.96/x
  3. Step 3: Cross multiply
    330,235.20x = 454,688.64 × 291,432.96
  4. Step 4: Simplify right side
    330,235.20x = 132,511,256,233.57
  5. Step 5: Solve for x
    x = 132,511,256,233.57/330,235.20
  6. Step 6: Final answer
    x = 401,263.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.