Home / 478,741.20-718,217.10-141,808.20

Finding the Fourth Proportional to 478,741.20, 718,217.10 and 141,808.20

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Solution

The fourth proportional to 478,741.20, 718,217.10 and 141,808.20 is: 212,743.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,741.20 : 718,217.10 = 141,808.20 : x
  2. Step 2: Convert to fraction form
    478,741.20/718,217.10 = 141,808.20/x
  3. Step 3: Cross multiply
    478,741.20x = 718,217.10 × 141,808.20
  4. Step 4: Simplify right side
    478,741.20x = 101,849,074,160.22
  5. Step 5: Solve for x
    x = 101,849,074,160.22/478,741.20
  6. Step 6: Final answer
    x = 212,743.49

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1.5x scale

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.