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Finding the Fourth Proportional to 318,994.80, 478,492.22 and 94,337.75

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Solution

The fourth proportional to 318,994.80, 478,492.22 and 94,337.75 is: 141,506.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,994.80 : 478,492.22 = 94,337.75 : x
  2. Step 2: Convert to fraction form
    318,994.80/478,492.22 = 94,337.75/x
  3. Step 3: Cross multiply
    318,994.80x = 478,492.22 × 94,337.75
  4. Step 4: Simplify right side
    318,994.80x = 45,139,876,563.16
  5. Step 5: Solve for x
    x = 45,139,876,563.16/318,994.80
  6. Step 6: Final answer
    x = 141,506.62

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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.