Home / 238,864.38-329,595.21-136,870.20

Finding the Fourth Proportional to 238,864.38, 329,595.21 and 136,870.20

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Solution

The fourth proportional to 238,864.38, 329,595.21 and 136,870.20 is: 188,859.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,864.38 : 329,595.21 = 136,870.20 : x
  2. Step 2: Convert to fraction form
    238,864.38/329,595.21 = 136,870.20/x
  3. Step 3: Cross multiply
    238,864.38x = 329,595.21 × 136,870.20
  4. Step 4: Simplify right side
    238,864.38x = 45,111,762,311.74
  5. Step 5: Solve for x
    x = 45,111,762,311.74/238,864.38
  6. Step 6: Final answer
    x = 188,859.31

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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.