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Finding the Fourth Proportional to 261,290.88, 360,568.32 and 148,110.72

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Solution

The fourth proportional to 261,290.88, 360,568.32 and 148,110.72 is: 204,385.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,290.88 : 360,568.32 = 148,110.72 : x
  2. Step 2: Convert to fraction form
    261,290.88/360,568.32 = 148,110.72/x
  3. Step 3: Cross multiply
    261,290.88x = 360,568.32 × 148,110.72
  4. Step 4: Simplify right side
    261,290.88x = 53,404,033,484.39
  5. Step 5: Solve for x
    x = 53,404,033,484.39/261,290.88
  6. Step 6: Final answer
    x = 204,385.37

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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.