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Finding the Fourth Proportional to 186,486.60, 279,073.80 and 170,740.20

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Solution

The fourth proportional to 186,486.60, 279,073.80 and 170,740.20 is: 255,509.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,486.60 : 279,073.80 = 170,740.20 : x
  2. Step 2: Convert to fraction form
    186,486.60/279,073.80 = 170,740.20/x
  3. Step 3: Cross multiply
    186,486.60x = 279,073.80 × 170,740.20
  4. Step 4: Simplify right side
    186,486.60x = 47,649,116,426.76
  5. Step 5: Solve for x
    x = 47,649,116,426.76/186,486.60
  6. Step 6: Final answer
    x = 255,509.60

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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.