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Finding the Fourth Proportional to 318,397.97, 439,396.04 and 175,157.98

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Solution

The fourth proportional to 318,397.97, 439,396.04 and 175,157.98 is: 241,721.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,397.97 : 439,396.04 = 175,157.98 : x
  2. Step 2: Convert to fraction form
    318,397.97/439,396.04 = 175,157.98/x
  3. Step 3: Cross multiply
    318,397.97x = 439,396.04 × 175,157.98
  4. Step 4: Simplify right side
    318,397.97x = 76,963,722,125.80
  5. Step 5: Solve for x
    x = 76,963,722,125.80/318,397.97
  6. Step 6: Final answer
    x = 241,721.77

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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.