Home / 389,171.52-583,786.08-136,424.16

Finding the Fourth Proportional to 389,171.52, 583,786.08 and 136,424.16

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Solution

The fourth proportional to 389,171.52, 583,786.08 and 136,424.16 is: 204,646.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,171.52 : 583,786.08 = 136,424.16 : x
  2. Step 2: Convert to fraction form
    389,171.52/583,786.08 = 136,424.16/x
  3. Step 3: Cross multiply
    389,171.52x = 583,786.08 × 136,424.16
  4. Step 4: Simplify right side
    389,171.52x = 79,642,525,583.69
  5. Step 5: Solve for x
    x = 79,642,525,583.69/389,171.52
  6. Step 6: Final answer
    x = 204,646.34

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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.