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Finding the Fourth Proportional to 252,324, 378,486.06 and 102,645.72

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Solution

The fourth proportional to 252,324, 378,486.06 and 102,645.72 is: 153,968.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,324 : 378,486.06 = 102,645.72 : x
  2. Step 2: Convert to fraction form
    252,324/378,486.06 = 102,645.72/x
  3. Step 3: Cross multiply
    252,324x = 378,486.06 × 102,645.72
  4. Step 4: Simplify right side
    252,324x = 38,849,974,138.66
  5. Step 5: Solve for x
    x = 38,849,974,138.66/252,324
  6. Step 6: Final answer
    x = 153,968.60

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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.