Home / 245,105.04-338,253.12-137,695.84

Finding the Fourth Proportional to 245,105.04, 338,253.12 and 137,695.84

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Solution

The fourth proportional to 245,105.04, 338,253.12 and 137,695.84 is: 190,024.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,105.04 : 338,253.12 = 137,695.84 : x
  2. Step 2: Convert to fraction form
    245,105.04/338,253.12 = 137,695.84/x
  3. Step 3: Cross multiply
    245,105.04x = 338,253.12 × 137,695.84
  4. Step 4: Simplify right side
    245,105.04x = 46,576,047,491.02
  5. Step 5: Solve for x
    x = 46,576,047,491.02/245,105.04
  6. Step 6: Final answer
    x = 190,024.85

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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.