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Finding the Fourth Proportional to 225,088.54, 310,554.75 and 129,592.78

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Solution

The fourth proportional to 225,088.54, 310,554.75 and 129,592.78 is: 178,799.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,088.54 : 310,554.75 = 129,592.78 : x
  2. Step 2: Convert to fraction form
    225,088.54/310,554.75 = 129,592.78/x
  3. Step 3: Cross multiply
    225,088.54x = 310,554.75 × 129,592.78
  4. Step 4: Simplify right side
    225,088.54x = 40,245,653,394.71
  5. Step 5: Solve for x
    x = 40,245,653,394.71/225,088.54
  6. Step 6: Final answer
    x = 178,799.21

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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.