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Finding the Fourth Proportional to 260,415.60, 359,371.80 and 147,238.80

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Solution

The fourth proportional to 260,415.60, 359,371.80 and 147,238.80 is: 203,188.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,415.60 : 359,371.80 = 147,238.80 : x
  2. Step 2: Convert to fraction form
    260,415.60/359,371.80 = 147,238.80/x
  3. Step 3: Cross multiply
    260,415.60x = 359,371.80 × 147,238.80
  4. Step 4: Simplify right side
    260,415.60x = 52,913,472,585.84
  5. Step 5: Solve for x
    x = 52,913,472,585.84/260,415.60
  6. Step 6: Final answer
    x = 203,188.57

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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.