Home / 448,685.18-672,882.15-149,085.31

Finding the Fourth Proportional to 448,685.18, 672,882.15 and 149,085.31

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Solution

The fourth proportional to 448,685.18, 672,882.15 and 149,085.31 is: 223,579.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,685.18 : 672,882.15 = 149,085.31 : x
  2. Step 2: Convert to fraction form
    448,685.18/672,882.15 = 149,085.31/x
  3. Step 3: Cross multiply
    448,685.18x = 672,882.15 × 149,085.31
  4. Step 4: Simplify right side
    448,685.18x = 100,316,840,561.81
  5. Step 5: Solve for x
    x = 100,316,840,561.81/448,685.18
  6. Step 6: Final answer
    x = 223,579.57

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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.