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Finding the Fourth Proportional to 239,575.80, 359,234.10 and 99,348.60

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Solution

The fourth proportional to 239,575.80, 359,234.10 and 99,348.60 is: 148,969.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,575.80 : 359,234.10 = 99,348.60 : x
  2. Step 2: Convert to fraction form
    239,575.80/359,234.10 = 99,348.60/x
  3. Step 3: Cross multiply
    239,575.80x = 359,234.10 × 99,348.60
  4. Step 4: Simplify right side
    239,575.80x = 35,689,404,907.26
  5. Step 5: Solve for x
    x = 35,689,404,907.26/239,575.80
  6. Step 6: Final answer
    x = 148,969.16

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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.