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Finding the Fourth Proportional to 260,447.68, 359,400.80 and 145,706.72

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Solution

The fourth proportional to 260,447.68, 359,400.80 and 145,706.72 is: 201,065.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,447.68 : 359,400.80 = 145,706.72 : x
  2. Step 2: Convert to fraction form
    260,447.68/359,400.80 = 145,706.72/x
  3. Step 3: Cross multiply
    260,447.68x = 359,400.80 × 145,706.72
  4. Step 4: Simplify right side
    260,447.68x = 52,367,111,733.38
  5. Step 5: Solve for x
    x = 52,367,111,733.38/260,447.68
  6. Step 6: Final answer
    x = 201,065.76

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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.