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Finding the Fourth Proportional to 269,421, 371,816.64 and 148,587.99

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Solution

The fourth proportional to 269,421, 371,816.64 and 148,587.99 is: 205,060.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,421 : 371,816.64 = 148,587.99 : x
  2. Step 2: Convert to fraction form
    269,421/371,816.64 = 148,587.99/x
  3. Step 3: Cross multiply
    269,421x = 371,816.64 × 148,587.99
  4. Step 4: Simplify right side
    269,421x = 55,247,487,186.15
  5. Step 5: Solve for x
    x = 55,247,487,186.15/269,421
  6. Step 6: Final answer
    x = 205,060.06

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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.