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Finding the Fourth Proportional to 269,308, 371,643.04 and 148,449.40

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Solution

The fourth proportional to 269,308, 371,643.04 and 148,449.40 is: 204,859.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,308 : 371,643.04 = 148,449.40 : x
  2. Step 2: Convert to fraction form
    269,308/371,643.04 = 148,449.40/x
  3. Step 3: Cross multiply
    269,308x = 371,643.04 × 148,449.40
  4. Step 4: Simplify right side
    269,308x = 55,170,186,302.18
  5. Step 5: Solve for x
    x = 55,170,186,302.18/269,308
  6. Step 6: Final answer
    x = 204,859.07

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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.