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Finding the Fourth Proportional to 243,013.20, 364,228.20 and 124,623.60

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Solution

The fourth proportional to 243,013.20, 364,228.20 and 124,623.60 is: 186,785.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,013.20 : 364,228.20 = 124,623.60 : x
  2. Step 2: Convert to fraction form
    243,013.20/364,228.20 = 124,623.60/x
  3. Step 3: Cross multiply
    243,013.20x = 364,228.20 × 124,623.60
  4. Step 4: Simplify right side
    243,013.20x = 45,391,429,505.52
  5. Step 5: Solve for x
    x = 45,391,429,505.52/243,013.20
  6. Step 6: Final answer
    x = 186,785.86

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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.