Home / 258,017.28-386,436.67-123,176.20

Finding the Fourth Proportional to 258,017.28, 386,436.67 and 123,176.20

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Solution

The fourth proportional to 258,017.28, 386,436.67 and 123,176.20 is: 184,482.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,017.28 : 386,436.67 = 123,176.20 : x
  2. Step 2: Convert to fraction form
    258,017.28/386,436.67 = 123,176.20/x
  3. Step 3: Cross multiply
    258,017.28x = 386,436.67 × 123,176.20
  4. Step 4: Simplify right side
    258,017.28x = 47,599,798,619.07
  5. Step 5: Solve for x
    x = 47,599,798,619.07/258,017.28
  6. Step 6: Final answer
    x = 184,482.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.