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Finding the Fourth Proportional to 269,190.18, 371,482.47 and 156,078.54

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Solution

The fourth proportional to 269,190.18, 371,482.47 and 156,078.54 is: 215,388.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,190.18 : 371,482.47 = 156,078.54 : x
  2. Step 2: Convert to fraction form
    269,190.18/371,482.47 = 156,078.54/x
  3. Step 3: Cross multiply
    269,190.18x = 371,482.47 × 156,078.54
  4. Step 4: Simplify right side
    269,190.18x = 57,980,441,553.19
  5. Step 5: Solve for x
    x = 57,980,441,553.19/269,190.18
  6. Step 6: Final answer
    x = 215,388.40

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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.