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Finding the Fourth Proportional to 261,212.72, 360,369.96 and 170,539.76

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Solution

The fourth proportional to 261,212.72, 360,369.96 and 170,539.76 is: 235,277.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,212.72 : 360,369.96 = 170,539.76 : x
  2. Step 2: Convert to fraction form
    261,212.72/360,369.96 = 170,539.76/x
  3. Step 3: Cross multiply
    261,212.72x = 360,369.96 × 170,539.76
  4. Step 4: Simplify right side
    261,212.72x = 61,457,406,489.61
  5. Step 5: Solve for x
    x = 61,457,406,489.61/261,212.72
  6. Step 6: Final answer
    x = 235,277.23

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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.