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Finding the Fourth Proportional to 239,577.40, 359,078.10 and 99,263.80

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Solution

The fourth proportional to 239,577.40, 359,078.10 and 99,263.80 is: 148,776.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,577.40 : 359,078.10 = 99,263.80 : x
  2. Step 2: Convert to fraction form
    239,577.40/359,078.10 = 99,263.80/x
  3. Step 3: Cross multiply
    239,577.40x = 359,078.10 × 99,263.80
  4. Step 4: Simplify right side
    239,577.40x = 35,643,456,702.78
  5. Step 5: Solve for x
    x = 35,643,456,702.78/239,577.40
  6. Step 6: Final answer
    x = 148,776.37

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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.