Home / 318,707.04-478,056.24-108,491.52

Finding the Fourth Proportional to 318,707.04, 478,056.24 and 108,491.52

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Solution

The fourth proportional to 318,707.04, 478,056.24 and 108,491.52 is: 162,735.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,707.04 : 478,056.24 = 108,491.52 : x
  2. Step 2: Convert to fraction form
    318,707.04/478,056.24 = 108,491.52/x
  3. Step 3: Cross multiply
    318,707.04x = 478,056.24 × 108,491.52
  4. Step 4: Simplify right side
    318,707.04x = 51,865,048,123.08
  5. Step 5: Solve for x
    x = 51,865,048,123.08/318,707.04
  6. Step 6: Final answer
    x = 162,735.81

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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.