Home / 309,340.14-426,961.71-201,722.73

Finding the Fourth Proportional to 309,340.14, 426,961.71 and 201,722.73

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Solution

The fourth proportional to 309,340.14, 426,961.71 and 201,722.73 is: 278,424.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,340.14 : 426,961.71 = 201,722.73 : x
  2. Step 2: Convert to fraction form
    309,340.14/426,961.71 = 201,722.73/x
  3. Step 3: Cross multiply
    309,340.14x = 426,961.71 × 201,722.73
  4. Step 4: Simplify right side
    309,340.14x = 86,127,881,746.67
  5. Step 5: Solve for x
    x = 86,127,881,746.67/309,340.14
  6. Step 6: Final answer
    x = 278,424.53

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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.