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Finding the Fourth Proportional to 289,246.32, 432,211.26 and 220,477.32

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Solution

The fourth proportional to 289,246.32, 432,211.26 and 220,477.32 is: 329,452.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,246.32 : 432,211.26 = 220,477.32 : x
  2. Step 2: Convert to fraction form
    289,246.32/432,211.26 = 220,477.32/x
  3. Step 3: Cross multiply
    289,246.32x = 432,211.26 × 220,477.32
  4. Step 4: Simplify right side
    289,246.32x = 95,292,780,278.62
  5. Step 5: Solve for x
    x = 95,292,780,278.62/289,246.32
  6. Step 6: Final answer
    x = 329,452.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.