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Finding the Fourth Proportional to 318,851.76, 478,356.24 and 94,211.04

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Solution

The fourth proportional to 318,851.76, 478,356.24 and 94,211.04 is: 141,339.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,851.76 : 478,356.24 = 94,211.04 : x
  2. Step 2: Convert to fraction form
    318,851.76/478,356.24 = 94,211.04/x
  3. Step 3: Cross multiply
    318,851.76x = 478,356.24 × 94,211.04
  4. Step 4: Simplify right side
    318,851.76x = 45,066,438,860.89
  5. Step 5: Solve for x
    x = 45,066,438,860.89/318,851.76
  6. Step 6: Final answer
    x = 141,339.78

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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.