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Finding the Fourth Proportional to 186,659.28, 279,990 and 46,417.92

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Solution

The fourth proportional to 186,659.28, 279,990 and 46,417.92 is: 69,627.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,659.28 : 279,990 = 46,417.92 : x
  2. Step 2: Convert to fraction form
    186,659.28/279,990 = 46,417.92/x
  3. Step 3: Cross multiply
    186,659.28x = 279,990 × 46,417.92
  4. Step 4: Simplify right side
    186,659.28x = 12,996,553,420.80
  5. Step 5: Solve for x
    x = 12,996,553,420.80/186,659.28
  6. Step 6: Final answer
    x = 69,627.15

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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.