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Finding the Fourth Proportional to 318,988.05, 478,575.63 and 94,354.39

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Solution

The fourth proportional to 318,988.05, 478,575.63 and 94,354.39 is: 141,559.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,988.05 : 478,575.63 = 94,354.39 : x
  2. Step 2: Convert to fraction form
    318,988.05/478,575.63 = 94,354.39/x
  3. Step 3: Cross multiply
    318,988.05x = 478,575.63 × 94,354.39
  4. Step 4: Simplify right side
    318,988.05x = 45,155,711,637.52
  5. Step 5: Solve for x
    x = 45,155,711,637.52/318,988.05
  6. Step 6: Final answer
    x = 141,559.26

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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.