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Finding the Fourth Proportional to 245,909.60, 368,864.40 and 242,223.20

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Solution

The fourth proportional to 245,909.60, 368,864.40 and 242,223.20 is: 363,334.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,909.60 : 368,864.40 = 242,223.20 : x
  2. Step 2: Convert to fraction form
    245,909.60/368,864.40 = 242,223.20/x
  3. Step 3: Cross multiply
    245,909.60x = 368,864.40 × 242,223.20
  4. Step 4: Simplify right side
    245,909.60x = 89,347,515,334.08
  5. Step 5: Solve for x
    x = 89,347,515,334.08/245,909.60
  6. Step 6: Final answer
    x = 363,334.80

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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.