Home / 318,947.95-478,255.81-150,423.02

Finding the Fourth Proportional to 318,947.95, 478,255.81 and 150,423.02

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Solution

The fourth proportional to 318,947.95, 478,255.81 and 150,423.02 is: 225,556.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,947.95 : 478,255.81 = 150,423.02 : x
  2. Step 2: Convert to fraction form
    318,947.95/478,255.81 = 150,423.02/x
  3. Step 3: Cross multiply
    318,947.95x = 478,255.81 × 150,423.02
  4. Step 4: Simplify right side
    318,947.95x = 71,940,684,848.04
  5. Step 5: Solve for x
    x = 71,940,684,848.04/318,947.95
  6. Step 6: Final answer
    x = 225,556.19

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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.