Home / 213,780.40-295,191.32-137,337.44

Finding the Fourth Proportional to 213,780.40, 295,191.32 and 137,337.44

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Solution

The fourth proportional to 213,780.40, 295,191.32 and 137,337.44 is: 189,637.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,780.40 : 295,191.32 = 137,337.44 : x
  2. Step 2: Convert to fraction form
    213,780.40/295,191.32 = 137,337.44/x
  3. Step 3: Cross multiply
    213,780.40x = 295,191.32 × 137,337.44
  4. Step 4: Simplify right side
    213,780.40x = 40,540,820,199.02
  5. Step 5: Solve for x
    x = 40,540,820,199.02/213,780.40
  6. Step 6: Final answer
    x = 189,637.69

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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.