Home / 318,950.20-478,259.18-150,425.28

Finding the Fourth Proportional to 318,950.20, 478,259.18 and 150,425.28

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Solution

The fourth proportional to 318,950.20, 478,259.18 and 150,425.28 is: 225,559.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,950.20 : 478,259.18 = 150,425.28 : x
  2. Step 2: Convert to fraction form
    318,950.20/478,259.18 = 150,425.28/x
  3. Step 3: Cross multiply
    318,950.20x = 478,259.18 × 150,425.28
  4. Step 4: Simplify right side
    318,950.20x = 71,942,271,064.07
  5. Step 5: Solve for x
    x = 71,942,271,064.07/318,950.20
  6. Step 6: Final answer
    x = 225,559.57

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1.5x scale

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.