Home / 306,116.79-422,555.78-229,856.19

Finding the Fourth Proportional to 306,116.79, 422,555.78 and 229,856.19

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Solution

The fourth proportional to 306,116.79, 422,555.78 and 229,856.19 is: 317,287.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,116.79 : 422,555.78 = 229,856.19 : x
  2. Step 2: Convert to fraction form
    306,116.79/422,555.78 = 229,856.19/x
  3. Step 3: Cross multiply
    306,116.79x = 422,555.78 × 229,856.19
  4. Step 4: Simplify right side
    306,116.79x = 97,127,060,504.00
  5. Step 5: Solve for x
    x = 97,127,060,504.00/306,116.79
  6. Step 6: Final answer
    x = 317,287.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.