Home / 388,938.03-583,272.12-136,212.95

Finding the Fourth Proportional to 388,938.03, 583,272.12 and 136,212.95

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Solution

The fourth proportional to 388,938.03, 583,272.12 and 136,212.95 is: 204,272.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,938.03 : 583,272.12 = 136,212.95 : x
  2. Step 2: Convert to fraction form
    388,938.03/583,272.12 = 136,212.95/x
  3. Step 3: Cross multiply
    388,938.03x = 583,272.12 × 136,212.95
  4. Step 4: Simplify right side
    388,938.03x = 79,449,215,899.66
  5. Step 5: Solve for x
    x = 79,449,215,899.66/388,938.03
  6. Step 6: Final answer
    x = 204,272.17

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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.