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Finding the Fourth Proportional to 269,099.12, 371,352.12 and 155,932.40

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Solution

The fourth proportional to 269,099.12, 371,352.12 and 155,932.40 is: 215,184.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,099.12 : 371,352.12 = 155,932.40 : x
  2. Step 2: Convert to fraction form
    269,099.12/371,352.12 = 155,932.40/x
  3. Step 3: Cross multiply
    269,099.12x = 371,352.12 × 155,932.40
  4. Step 4: Simplify right side
    269,099.12x = 57,905,827,316.69
  5. Step 5: Solve for x
    x = 57,905,827,316.69/269,099.12
  6. Step 6: Final answer
    x = 215,184.01

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1.5x scale

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.