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Finding the Fourth Proportional to 325,112.74, 487,548.08 and 111,820.77

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Solution

The fourth proportional to 325,112.74, 487,548.08 and 111,820.77 is: 167,689.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,112.74 : 487,548.08 = 111,820.77 : x
  2. Step 2: Convert to fraction form
    325,112.74/487,548.08 = 111,820.77/x
  3. Step 3: Cross multiply
    325,112.74x = 487,548.08 × 111,820.77
  4. Step 4: Simplify right side
    325,112.74x = 54,518,001,577.85
  5. Step 5: Solve for x
    x = 54,518,001,577.85/325,112.74
  6. Step 6: Final answer
    x = 167,689.53

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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.