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Finding the Fourth Proportional to 443,534.70, 612,077.51 and 239,585.55

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Solution

The fourth proportional to 443,534.70, 612,077.51 and 239,585.55 is: 330,627.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,534.70 : 612,077.51 = 239,585.55 : x
  2. Step 2: Convert to fraction form
    443,534.70/612,077.51 = 239,585.55/x
  3. Step 3: Cross multiply
    443,534.70x = 612,077.51 × 239,585.55
  4. Step 4: Simplify right side
    443,534.70x = 146,644,925,678.05
  5. Step 5: Solve for x
    x = 146,644,925,678.05/443,534.70
  6. Step 6: Final answer
    x = 330,627.85

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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.