Home / 318,423.34-439,374.13-182,431.09

Finding the Fourth Proportional to 318,423.34, 439,374.13 and 182,431.09

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Solution

The fourth proportional to 318,423.34, 439,374.13 and 182,431.09 is: 251,726.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,423.34 : 439,374.13 = 182,431.09 : x
  2. Step 2: Convert to fraction form
    318,423.34/439,374.13 = 182,431.09/x
  3. Step 3: Cross multiply
    318,423.34x = 439,374.13 × 182,431.09
  4. Step 4: Simplify right side
    318,423.34x = 80,155,501,453.70
  5. Step 5: Solve for x
    x = 80,155,501,453.70/318,423.34
  6. Step 6: Final answer
    x = 251,726.21

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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.