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Finding the Fourth Proportional to 207,302.14, 310,952.18 and 80,955.21

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Solution

The fourth proportional to 207,302.14, 310,952.18 and 80,955.21 is: 121,432.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,302.14 : 310,952.18 = 80,955.21 : x
  2. Step 2: Convert to fraction form
    207,302.14/310,952.18 = 80,955.21/x
  3. Step 3: Cross multiply
    207,302.14x = 310,952.18 × 80,955.21
  4. Step 4: Simplify right side
    207,302.14x = 25,173,200,400.32
  5. Step 5: Solve for x
    x = 25,173,200,400.32/207,302.14
  6. Step 6: Final answer
    x = 121,432.42

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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.