Home / 318,733.28-478,044.56-119,055.40

Finding the Fourth Proportional to 318,733.28, 478,044.56 and 119,055.40

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Solution

The fourth proportional to 318,733.28, 478,044.56 and 119,055.40 is: 178,562.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,733.28 : 478,044.56 = 119,055.40 : x
  2. Step 2: Convert to fraction form
    318,733.28/478,044.56 = 119,055.40/x
  3. Step 3: Cross multiply
    318,733.28x = 478,044.56 × 119,055.40
  4. Step 4: Simplify right side
    318,733.28x = 56,913,786,308.62
  5. Step 5: Solve for x
    x = 56,913,786,308.62/318,733.28
  6. Step 6: Final answer
    x = 178,562.42

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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.