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Finding the Fourth Proportional to 252,825.82, 348,869.90 and 139,641.82

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Solution

The fourth proportional to 252,825.82, 348,869.90 and 139,641.82 is: 192,689.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,825.82 : 348,869.90 = 139,641.82 : x
  2. Step 2: Convert to fraction form
    252,825.82/348,869.90 = 139,641.82/x
  3. Step 3: Cross multiply
    252,825.82x = 348,869.90 × 139,641.82
  4. Step 4: Simplify right side
    252,825.82x = 48,716,827,779.22
  5. Step 5: Solve for x
    x = 48,716,827,779.22/252,825.82
  6. Step 6: Final answer
    x = 192,689.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.