Home / 318,965.18-478,030.17-161,108.06

Finding the Fourth Proportional to 318,965.18, 478,030.17 and 161,108.06

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Solution

The fourth proportional to 318,965.18, 478,030.17 and 161,108.06 is: 241,451.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,965.18 : 478,030.17 = 161,108.06 : x
  2. Step 2: Convert to fraction form
    318,965.18/478,030.17 = 161,108.06/x
  3. Step 3: Cross multiply
    318,965.18x = 478,030.17 × 161,108.06
  4. Step 4: Simplify right side
    318,965.18x = 77,014,513,310.17
  5. Step 5: Solve for x
    x = 77,014,513,310.17/318,965.18
  6. Step 6: Final answer
    x = 241,451.16

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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.