Home / 318,795.38-439,891.10-180,952.88

Finding the Fourth Proportional to 318,795.38, 439,891.10 and 180,952.88

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Solution

The fourth proportional to 318,795.38, 439,891.10 and 180,952.88 is: 249,688.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,795.38 : 439,891.10 = 180,952.88 : x
  2. Step 2: Convert to fraction form
    318,795.38/439,891.10 = 180,952.88/x
  3. Step 3: Cross multiply
    318,795.38x = 439,891.10 × 180,952.88
  4. Step 4: Simplify right side
    318,795.38x = 79,599,561,431.37
  5. Step 5: Solve for x
    x = 79,599,561,431.37/318,795.38
  6. Step 6: Final answer
    x = 249,688.57

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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.