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Finding the Fourth Proportional to 206,955.79, 310,174.10 and 88,488.07

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Solution

The fourth proportional to 206,955.79, 310,174.10 and 88,488.07 is: 132,621.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,955.79 : 310,174.10 = 88,488.07 : x
  2. Step 2: Convert to fraction form
    206,955.79/310,174.10 = 88,488.07/x
  3. Step 3: Cross multiply
    206,955.79x = 310,174.10 × 88,488.07
  4. Step 4: Simplify right side
    206,955.79x = 27,446,705,479.68
  5. Step 5: Solve for x
    x = 27,446,705,479.68/206,955.79
  6. Step 6: Final answer
    x = 132,621.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.