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Finding the Fourth Proportional to 265,893.60, 399,102.72 and 141,234.24

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Solution

The fourth proportional to 265,893.60, 399,102.72 and 141,234.24 is: 211,990.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,893.60 : 399,102.72 = 141,234.24 : x
  2. Step 2: Convert to fraction form
    265,893.60/399,102.72 = 141,234.24/x
  3. Step 3: Cross multiply
    265,893.60x = 399,102.72 × 141,234.24
  4. Step 4: Simplify right side
    265,893.60x = 56,366,969,341.13
  5. Step 5: Solve for x
    x = 56,366,969,341.13/265,893.60
  6. Step 6: Final answer
    x = 211,990.70

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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.