Home / 338,723.60-508,085.40-283,611.20

Finding the Fourth Proportional to 338,723.60, 508,085.40 and 283,611.20

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Solution

The fourth proportional to 338,723.60, 508,085.40 and 283,611.20 is: 425,416.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,723.60 : 508,085.40 = 283,611.20 : x
  2. Step 2: Convert to fraction form
    338,723.60/508,085.40 = 283,611.20/x
  3. Step 3: Cross multiply
    338,723.60x = 508,085.40 × 283,611.20
  4. Step 4: Simplify right side
    338,723.60x = 144,098,709,996.48
  5. Step 5: Solve for x
    x = 144,098,709,996.48/338,723.60
  6. Step 6: Final answer
    x = 425,416.80

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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.