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Finding the Fourth Proportional to 318,297.02, 477,655.85 and 149,865.50

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Solution

The fourth proportional to 318,297.02, 477,655.85 and 149,865.50 is: 224,897.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,297.02 : 477,655.85 = 149,865.50 : x
  2. Step 2: Convert to fraction form
    318,297.02/477,655.85 = 149,865.50/x
  3. Step 3: Cross multiply
    318,297.02x = 477,655.85 × 149,865.50
  4. Step 4: Simplify right side
    318,297.02x = 71,584,134,356.98
  5. Step 5: Solve for x
    x = 71,584,134,356.98/318,297.02
  6. Step 6: Final answer
    x = 224,897.28

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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.