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Finding the Fourth Proportional to 228,085.72, 342,186.90 and 94,921.72

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Solution

The fourth proportional to 228,085.72, 342,186.90 and 94,921.72 is: 142,406.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,085.72 : 342,186.90 = 94,921.72 : x
  2. Step 2: Convert to fraction form
    228,085.72/342,186.90 = 94,921.72/x
  3. Step 3: Cross multiply
    228,085.72x = 342,186.90 × 94,921.72
  4. Step 4: Simplify right side
    228,085.72x = 32,480,969,109.47
  5. Step 5: Solve for x
    x = 32,480,969,109.47/228,085.72
  6. Step 6: Final answer
    x = 142,406.85

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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.