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Finding the Fourth Proportional to 318,304, 439,263.16 and 175,066.40

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Solution

The fourth proportional to 318,304, 439,263.16 and 175,066.40 is: 241,593.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,304 : 439,263.16 = 175,066.40 : x
  2. Step 2: Convert to fraction form
    318,304/439,263.16 = 175,066.40/x
  3. Step 3: Cross multiply
    318,304x = 439,263.16 × 175,066.40
  4. Step 4: Simplify right side
    318,304x = 76,900,220,073.82
  5. Step 5: Solve for x
    x = 76,900,220,073.82/318,304
  6. Step 6: Final answer
    x = 241,593.63

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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.