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Finding the Fourth Proportional to 215,348, 297,179.92 and 119,852.40

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Solution

The fourth proportional to 215,348, 297,179.92 and 119,852.40 is: 165,396.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,348 : 297,179.92 = 119,852.40 : x
  2. Step 2: Convert to fraction form
    215,348/297,179.92 = 119,852.40/x
  3. Step 3: Cross multiply
    215,348x = 297,179.92 × 119,852.40
  4. Step 4: Simplify right side
    215,348x = 35,617,726,643.81
  5. Step 5: Solve for x
    x = 35,617,726,643.81/215,348
  6. Step 6: Final answer
    x = 165,396.13

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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.