Home / 388,937.28-583,271.00-136,212.20

Finding the Fourth Proportional to 388,937.28, 583,271.00 and 136,212.20

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Solution

The fourth proportional to 388,937.28, 583,271.00 and 136,212.20 is: 204,271.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,937.28 : 583,271.00 = 136,212.20 : x
  2. Step 2: Convert to fraction form
    388,937.28/583,271.00 = 136,212.20/x
  3. Step 3: Cross multiply
    388,937.28x = 583,271.00 × 136,212.20
  4. Step 4: Simplify right side
    388,937.28x = 79,448,625,206.85
  5. Step 5: Solve for x
    x = 79,448,625,206.85/388,937.28
  6. Step 6: Final answer
    x = 204,271.04

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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.