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Finding the Fourth Proportional to 325,006.02, 487,510.56 and 85,119.42

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Solution

The fourth proportional to 325,006.02, 487,510.56 and 85,119.42 is: 127,679.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,006.02 : 487,510.56 = 85,119.42 : x
  2. Step 2: Convert to fraction form
    325,006.02/487,510.56 = 85,119.42/x
  3. Step 3: Cross multiply
    325,006.02x = 487,510.56 × 85,119.42
  4. Step 4: Simplify right side
    325,006.02x = 41,496,616,111.08
  5. Step 5: Solve for x
    x = 41,496,616,111.08/325,006.02
  6. Step 6: Final answer
    x = 127,679.53

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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.