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Finding the Fourth Proportional to 188,445.20, 282,667.80 and 186,476.90

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Solution

The fourth proportional to 188,445.20, 282,667.80 and 186,476.90 is: 279,715.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,445.20 : 282,667.80 = 186,476.90 : x
  2. Step 2: Convert to fraction form
    188,445.20/282,667.80 = 186,476.90/x
  3. Step 3: Cross multiply
    188,445.20x = 282,667.80 × 186,476.90
  4. Step 4: Simplify right side
    188,445.20x = 52,711,015,073.82
  5. Step 5: Solve for x
    x = 52,711,015,073.82/188,445.20
  6. Step 6: Final answer
    x = 279,715.35

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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.