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Finding the Fourth Proportional to 245,569.32, 338,882.13 and 136,672.92

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Solution

The fourth proportional to 245,569.32, 338,882.13 and 136,672.92 is: 188,606.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,569.32 : 338,882.13 = 136,672.92 : x
  2. Step 2: Convert to fraction form
    245,569.32/338,882.13 = 136,672.92/x
  3. Step 3: Cross multiply
    245,569.32x = 338,882.13 × 136,672.92
  4. Step 4: Simplify right side
    245,569.32x = 46,316,010,242.92
  5. Step 5: Solve for x
    x = 46,316,010,242.92/245,569.32
  6. Step 6: Final answer
    x = 188,606.66

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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.