Home / 638,904.26-958,442.79-218,067.14

Finding the Fourth Proportional to 638,904.26, 958,442.79 and 218,067.14

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Solution

The fourth proportional to 638,904.26, 958,442.79 and 218,067.14 is: 327,130.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,904.26 : 958,442.79 = 218,067.14 : x
  2. Step 2: Convert to fraction form
    638,904.26/958,442.79 = 218,067.14/x
  3. Step 3: Cross multiply
    638,904.26x = 958,442.79 × 218,067.14
  4. Step 4: Simplify right side
    638,904.26x = 209,004,878,068.92
  5. Step 5: Solve for x
    x = 209,004,878,068.92/638,904.26
  6. Step 6: Final answer
    x = 327,130.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.