Home / 389,512.32-584,333.04-136,727.19

Finding the Fourth Proportional to 389,512.32, 584,333.04 and 136,727.19

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Solution

The fourth proportional to 389,512.32, 584,333.04 and 136,727.19 is: 205,113.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,512.32 : 584,333.04 = 136,727.19 : x
  2. Step 2: Convert to fraction form
    389,512.32/584,333.04 = 136,727.19/x
  3. Step 3: Cross multiply
    389,512.32x = 584,333.04 × 136,727.19
  4. Step 4: Simplify right side
    389,512.32x = 79,894,214,583.36
  5. Step 5: Solve for x
    x = 79,894,214,583.36/389,512.32
  6. Step 6: Final answer
    x = 205,113.45

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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.