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Finding the Fourth Proportional to 242,427.20, 362,863.20 and 172,443.20

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Solution

The fourth proportional to 242,427.20, 362,863.20 and 172,443.20 is: 258,111.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,427.20 : 362,863.20 = 172,443.20 : x
  2. Step 2: Convert to fraction form
    242,427.20/362,863.20 = 172,443.20/x
  3. Step 3: Cross multiply
    242,427.20x = 362,863.20 × 172,443.20
  4. Step 4: Simplify right side
    242,427.20x = 62,573,291,370.24
  5. Step 5: Solve for x
    x = 62,573,291,370.24/242,427.20
  6. Step 6: Final answer
    x = 258,111.68

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