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Finding the Fourth Proportional to 261,289.86, 360,656.75 and 170,659.68

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Solution

The fourth proportional to 261,289.86, 360,656.75 and 170,659.68 is: 235,560.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,289.86 : 360,656.75 = 170,659.68 : x
  2. Step 2: Convert to fraction form
    261,289.86/360,656.75 = 170,659.68/x
  3. Step 3: Cross multiply
    261,289.86x = 360,656.75 × 170,659.68
  4. Step 4: Simplify right side
    261,289.86x = 61,549,565,544.84
  5. Step 5: Solve for x
    x = 61,549,565,544.84/261,289.86
  6. Step 6: Final answer
    x = 235,560.48

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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.