Home / 420,237.43-579,926.87-229,250.81

Finding the Fourth Proportional to 420,237.43, 579,926.87 and 229,250.81

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Solution

The fourth proportional to 420,237.43, 579,926.87 and 229,250.81 is: 316,365.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,237.43 : 579,926.87 = 229,250.81 : x
  2. Step 2: Convert to fraction form
    420,237.43/579,926.87 = 229,250.81/x
  3. Step 3: Cross multiply
    420,237.43x = 579,926.87 × 229,250.81
  4. Step 4: Simplify right side
    420,237.43x = 132,948,704,688.27
  5. Step 5: Solve for x
    x = 132,948,704,688.27/420,237.43
  6. Step 6: Final answer
    x = 316,365.69

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1.5x scale

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.