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Finding the Fourth Proportional to 225,085.84, 310,679.88 and 140,152.72

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Solution

The fourth proportional to 225,085.84, 310,679.88 and 140,152.72 is: 193,449.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,085.84 : 310,679.88 = 140,152.72 : x
  2. Step 2: Convert to fraction form
    225,085.84/310,679.88 = 140,152.72/x
  3. Step 3: Cross multiply
    225,085.84x = 310,679.88 × 140,152.72
  4. Step 4: Simplify right side
    225,085.84x = 43,542,630,231.27
  5. Step 5: Solve for x
    x = 43,542,630,231.27/225,085.84
  6. Step 6: Final answer
    x = 193,449.00

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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.