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Finding the Fourth Proportional to 239,576.40, 359,076.60 and 99,262.80

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Solution

The fourth proportional to 239,576.40, 359,076.60 and 99,262.80 is: 148,774.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,576.40 : 359,076.60 = 99,262.80 : x
  2. Step 2: Convert to fraction form
    239,576.40/359,076.60 = 99,262.80/x
  3. Step 3: Cross multiply
    239,576.40x = 359,076.60 × 99,262.80
  4. Step 4: Simplify right side
    239,576.40x = 35,642,948,730.48
  5. Step 5: Solve for x
    x = 35,642,948,730.48/239,576.40
  6. Step 6: Final answer
    x = 148,774.87

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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.