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Finding the Fourth Proportional to 261,277.80, 360,587.16 and 159,308.88

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Solution

The fourth proportional to 261,277.80, 360,587.16 and 159,308.88 is: 219,860.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,277.80 : 360,587.16 = 159,308.88 : x
  2. Step 2: Convert to fraction form
    261,277.80/360,587.16 = 159,308.88/x
  3. Step 3: Cross multiply
    261,277.80x = 360,587.16 × 159,308.88
  4. Step 4: Simplify right side
    261,277.80x = 57,444,736,601.98
  5. Step 5: Solve for x
    x = 57,444,736,601.98/261,277.80
  6. Step 6: Final answer
    x = 219,860.76

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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.