Home / 478,741.70-718,217.85-141,808.70

Finding the Fourth Proportional to 478,741.70, 718,217.85 and 141,808.70

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Solution

The fourth proportional to 478,741.70, 718,217.85 and 141,808.70 is: 212,744.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,741.70 : 718,217.85 = 141,808.70 : x
  2. Step 2: Convert to fraction form
    478,741.70/718,217.85 = 141,808.70/x
  3. Step 3: Cross multiply
    478,741.70x = 718,217.85 × 141,808.70
  4. Step 4: Simplify right side
    478,741.70x = 101,849,539,625.30
  5. Step 5: Solve for x
    x = 101,849,539,625.30/478,741.70
  6. Step 6: Final answer
    x = 212,744.24

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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.