Home / 362,123.40-499,733.60-218,979.12

Finding the Fourth Proportional to 362,123.40, 499,733.60 and 218,979.12

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Solution

The fourth proportional to 362,123.40, 499,733.60 and 218,979.12 is: 302,193.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,123.40 : 499,733.60 = 218,979.12 : x
  2. Step 2: Convert to fraction form
    362,123.40/499,733.60 = 218,979.12/x
  3. Step 3: Cross multiply
    362,123.40x = 499,733.60 × 218,979.12
  4. Step 4: Simplify right side
    362,123.40x = 109,431,223,962.43
  5. Step 5: Solve for x
    x = 109,431,223,962.43/362,123.40
  6. Step 6: Final answer
    x = 302,193.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.