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Finding the Fourth Proportional to 318,882.89, 440,058.34 and 175,642.93

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Solution

The fourth proportional to 318,882.89, 440,058.34 and 175,642.93 is: 242,387.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,882.89 : 440,058.34 = 175,642.93 : x
  2. Step 2: Convert to fraction form
    318,882.89/440,058.34 = 175,642.93/x
  3. Step 3: Cross multiply
    318,882.89x = 440,058.34 × 175,642.93
  4. Step 4: Simplify right side
    318,882.89x = 77,293,136,208.54
  5. Step 5: Solve for x
    x = 77,293,136,208.54/318,882.89
  6. Step 6: Final answer
    x = 242,387.22

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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.