Home / 217,988.12-300,851.78-122,494.82

Finding the Fourth Proportional to 217,988.12, 300,851.78 and 122,494.82

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Solution

The fourth proportional to 217,988.12, 300,851.78 and 122,494.82 is: 169,058.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,988.12 : 300,851.78 = 122,494.82 : x
  2. Step 2: Convert to fraction form
    217,988.12/300,851.78 = 122,494.82/x
  3. Step 3: Cross multiply
    217,988.12x = 300,851.78 × 122,494.82
  4. Step 4: Simplify right side
    217,988.12x = 36,852,782,521.05
  5. Step 5: Solve for x
    x = 36,852,782,521.05/217,988.12
  6. Step 6: Final answer
    x = 169,058.68

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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.