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Finding the Fourth Proportional to 445,577.52, 668,395.44 and 130,008

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Solution

The fourth proportional to 445,577.52, 668,395.44 and 130,008 is: 195,020.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,577.52 : 668,395.44 = 130,008 : x
  2. Step 2: Convert to fraction form
    445,577.52/668,395.44 = 130,008/x
  3. Step 3: Cross multiply
    445,577.52x = 668,395.44 × 130,008
  4. Step 4: Simplify right side
    445,577.52x = 86,896,754,363.52
  5. Step 5: Solve for x
    x = 86,896,754,363.52/445,577.52
  6. Step 6: Final answer
    x = 195,020.51

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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.