Home / 145,493.22-218,240.10-40,312.47

Finding the Fourth Proportional to 145,493.22, 218,240.10 and 40,312.47

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Solution

The fourth proportional to 145,493.22, 218,240.10 and 40,312.47 is: 60,468.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,493.22 : 218,240.10 = 40,312.47 : x
  2. Step 2: Convert to fraction form
    145,493.22/218,240.10 = 40,312.47/x
  3. Step 3: Cross multiply
    145,493.22x = 218,240.10 × 40,312.47
  4. Step 4: Simplify right side
    145,493.22x = 8,797,797,484.05
  5. Step 5: Solve for x
    x = 8,797,797,484.05/145,493.22
  6. Step 6: Final answer
    x = 60,468.78

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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.