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Finding the Fourth Proportional to 270,703.20, 406,054.80 and 186,722.40

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Solution

The fourth proportional to 270,703.20, 406,054.80 and 186,722.40 is: 280,083.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,703.20 : 406,054.80 = 186,722.40 : x
  2. Step 2: Convert to fraction form
    270,703.20/406,054.80 = 186,722.40/x
  3. Step 3: Cross multiply
    270,703.20x = 406,054.80 × 186,722.40
  4. Step 4: Simplify right side
    270,703.20x = 75,819,526,787.52
  5. Step 5: Solve for x
    x = 75,819,526,787.52/270,703.20
  6. Step 6: Final answer
    x = 280,083.60

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1.5x scale

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.