Home / 388,277.19-582,681.78-135,557.71

Finding the Fourth Proportional to 388,277.19, 582,681.78 and 135,557.71

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Solution

The fourth proportional to 388,277.19, 582,681.78 and 135,557.71 is: 203,429.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,277.19 : 582,681.78 = 135,557.71 : x
  2. Step 2: Convert to fraction form
    388,277.19/582,681.78 = 135,557.71/x
  3. Step 3: Cross multiply
    388,277.19x = 582,681.78 × 135,557.71
  4. Step 4: Simplify right side
    388,277.19x = 78,987,006,298.82
  5. Step 5: Solve for x
    x = 78,987,006,298.82/388,277.19
  6. Step 6: Final answer
    x = 203,429.43

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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.