Home / 261,820.91-361,313.19-148,643.66

Finding the Fourth Proportional to 261,820.91, 361,313.19 and 148,643.66

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Solution

The fourth proportional to 261,820.91, 361,313.19 and 148,643.66 is: 205,128.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,820.91 : 361,313.19 = 148,643.66 : x
  2. Step 2: Convert to fraction form
    261,820.91/361,313.19 = 148,643.66/x
  3. Step 3: Cross multiply
    261,820.91x = 361,313.19 × 148,643.66
  4. Step 4: Simplify right side
    261,820.91x = 53,706,913,838.77
  5. Step 5: Solve for x
    x = 53,706,913,838.77/261,820.91
  6. Step 6: Final answer
    x = 205,128.44

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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.