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Finding the Fourth Proportional to 261,521.04, 360,489.60 and 170,831.64

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Solution

The fourth proportional to 261,521.04, 360,489.60 and 170,831.64 is: 235,480.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,521.04 : 360,489.60 = 170,831.64 : x
  2. Step 2: Convert to fraction form
    261,521.04/360,489.60 = 170,831.64/x
  3. Step 3: Cross multiply
    261,521.04x = 360,489.60 × 170,831.64
  4. Step 4: Simplify right side
    261,521.04x = 61,583,029,570.94
  5. Step 5: Solve for x
    x = 61,583,029,570.94/261,521.04
  6. Step 6: Final answer
    x = 235,480.21

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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.