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Finding the Fourth Proportional to 318,474.72, 439,483.92 and 175,233.60

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Solution

The fourth proportional to 318,474.72, 439,483.92 and 175,233.60 is: 241,816.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,474.72 : 439,483.92 = 175,233.60 : x
  2. Step 2: Convert to fraction form
    318,474.72/439,483.92 = 175,233.60/x
  3. Step 3: Cross multiply
    318,474.72x = 439,483.92 × 175,233.60
  4. Step 4: Simplify right side
    318,474.72x = 77,012,349,443.71
  5. Step 5: Solve for x
    x = 77,012,349,443.71/318,474.72
  6. Step 6: Final answer
    x = 241,816.21

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1.5x scale

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.