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Finding the Fourth Proportional to 360,005.88, 540,085.20 and 123,285

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Solution

The fourth proportional to 360,005.88, 540,085.20 and 123,285 is: 184,953.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,005.88 : 540,085.20 = 123,285 : x
  2. Step 2: Convert to fraction form
    360,005.88/540,085.20 = 123,285/x
  3. Step 3: Cross multiply
    360,005.88x = 540,085.20 × 123,285
  4. Step 4: Simplify right side
    360,005.88x = 66,584,403,882.00
  5. Step 5: Solve for x
    x = 66,584,403,882.00/360,005.88
  6. Step 6: Final answer
    x = 184,953.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.