Home / 306,085.12-422,275.98-176,999.72

Finding the Fourth Proportional to 306,085.12, 422,275.98 and 176,999.72

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Solution

The fourth proportional to 306,085.12, 422,275.98 and 176,999.72 is: 244,189.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,085.12 : 422,275.98 = 176,999.72 : x
  2. Step 2: Convert to fraction form
    306,085.12/422,275.98 = 176,999.72/x
  3. Step 3: Cross multiply
    306,085.12x = 422,275.98 × 176,999.72
  4. Step 4: Simplify right side
    306,085.12x = 74,742,730,222.73
  5. Step 5: Solve for x
    x = 74,742,730,222.73/306,085.12
  6. Step 6: Final answer
    x = 244,189.36

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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.