Home / 245,624.45-338,963.13-138,196.31

Finding the Fourth Proportional to 245,624.45, 338,963.13 and 138,196.31

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Solution

The fourth proportional to 245,624.45, 338,963.13 and 138,196.31 is: 190,711.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,624.45 : 338,963.13 = 138,196.31 : x
  2. Step 2: Convert to fraction form
    245,624.45/338,963.13 = 138,196.31/x
  3. Step 3: Cross multiply
    245,624.45x = 338,963.13 × 138,196.31
  4. Step 4: Simplify right side
    245,624.45x = 46,843,452,097.23
  5. Step 5: Solve for x
    x = 46,843,452,097.23/245,624.45
  6. Step 6: Final answer
    x = 190,711.69

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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.