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Finding the Fourth Proportional to 318,490.56, 439,520.04 and 175,253.67

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Solution

The fourth proportional to 318,490.56, 439,520.04 and 175,253.67 is: 241,851.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,490.56 : 439,520.04 = 175,253.67 : x
  2. Step 2: Convert to fraction form
    318,490.56/439,520.04 = 175,253.67/x
  3. Step 3: Cross multiply
    318,490.56x = 439,520.04 × 175,253.67
  4. Step 4: Simplify right side
    318,490.56x = 77,027,500,048.55
  5. Step 5: Solve for x
    x = 77,027,500,048.55/318,490.56
  6. Step 6: Final answer
    x = 241,851.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.