Home / 243,805.06-336,478.89-136,402.30

Finding the Fourth Proportional to 243,805.06, 336,478.89 and 136,402.30

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Solution

The fourth proportional to 243,805.06, 336,478.89 and 136,402.30 is: 188,250.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,805.06 : 336,478.89 = 136,402.30 : x
  2. Step 2: Convert to fraction form
    243,805.06/336,478.89 = 136,402.30/x
  3. Step 3: Cross multiply
    243,805.06x = 336,478.89 × 136,402.30
  4. Step 4: Simplify right side
    243,805.06x = 45,896,494,497.45
  5. Step 5: Solve for x
    x = 45,896,494,497.45/243,805.06
  6. Step 6: Final answer
    x = 188,250.79

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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.