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Finding the Fourth Proportional to 224,004.80, 336,160.80 and 99,435.20

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Solution

The fourth proportional to 224,004.80, 336,160.80 and 99,435.20 is: 149,220.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,004.80 : 336,160.80 = 99,435.20 : x
  2. Step 2: Convert to fraction form
    224,004.80/336,160.80 = 99,435.20/x
  3. Step 3: Cross multiply
    224,004.80x = 336,160.80 × 99,435.20
  4. Step 4: Simplify right side
    224,004.80x = 33,426,216,380.16
  5. Step 5: Solve for x
    x = 33,426,216,380.16/224,004.80
  6. Step 6: Final answer
    x = 149,220.98

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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.