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Finding the Fourth Proportional to 659,241.40, 988,862.10 and 185,920.60

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Solution

The fourth proportional to 659,241.40, 988,862.10 and 185,920.60 is: 278,880.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,241.40 : 988,862.10 = 185,920.60 : x
  2. Step 2: Convert to fraction form
    659,241.40/988,862.10 = 185,920.60/x
  3. Step 3: Cross multiply
    659,241.40x = 988,862.10 × 185,920.60
  4. Step 4: Simplify right side
    659,241.40x = 183,849,834,949.26
  5. Step 5: Solve for x
    x = 183,849,834,949.26/659,241.40
  6. Step 6: Final answer
    x = 278,880.90

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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.