Home / 261,086.83-360,272.68-153,650.45

Finding the Fourth Proportional to 261,086.83, 360,272.68 and 153,650.45

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Solution

The fourth proportional to 261,086.83, 360,272.68 and 153,650.45 is: 212,021.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,086.83 : 360,272.68 = 153,650.45 : x
  2. Step 2: Convert to fraction form
    261,086.83/360,272.68 = 153,650.45/x
  3. Step 3: Cross multiply
    261,086.83x = 360,272.68 × 153,650.45
  4. Step 4: Simplify right side
    261,086.83x = 55,356,059,921.26
  5. Step 5: Solve for x
    x = 55,356,059,921.26/261,086.83
  6. Step 6: Final answer
    x = 212,021.65

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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.