Home / 209,310.12-288,853.44-113,822.40

Finding the Fourth Proportional to 209,310.12, 288,853.44 and 113,822.40

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Solution

The fourth proportional to 209,310.12, 288,853.44 and 113,822.40 is: 157,077.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,310.12 : 288,853.44 = 113,822.40 : x
  2. Step 2: Convert to fraction form
    209,310.12/288,853.44 = 113,822.40/x
  3. Step 3: Cross multiply
    209,310.12x = 288,853.44 × 113,822.40
  4. Step 4: Simplify right side
    209,310.12x = 32,877,991,789.06
  5. Step 5: Solve for x
    x = 32,877,991,789.06/209,310.12
  6. Step 6: Final answer
    x = 157,077.89

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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.