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Finding the Fourth Proportional to 260,879.32, 359,827.14 and 239,438.62

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Solution

The fourth proportional to 260,879.32, 359,827.14 and 239,438.62 is: 330,254.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,879.32 : 359,827.14 = 239,438.62 : x
  2. Step 2: Convert to fraction form
    260,879.32/359,827.14 = 239,438.62/x
  3. Step 3: Cross multiply
    260,879.32x = 359,827.14 × 239,438.62
  4. Step 4: Simplify right side
    260,879.32x = 86,156,513,840.15
  5. Step 5: Solve for x
    x = 86,156,513,840.15/260,879.32
  6. Step 6: Final answer
    x = 330,254.29

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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.