Home / 389,656.08-584,488.36-136,943.76

Finding the Fourth Proportional to 389,656.08, 584,488.36 and 136,943.76

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Solution

The fourth proportional to 389,656.08, 584,488.36 and 136,943.76 is: 205,417.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,656.08 : 584,488.36 = 136,943.76 : x
  2. Step 2: Convert to fraction form
    389,656.08/584,488.36 = 136,943.76/x
  3. Step 3: Cross multiply
    389,656.08x = 584,488.36 × 136,943.76
  4. Step 4: Simplify right side
    389,656.08x = 80,042,033,694.63
  5. Step 5: Solve for x
    x = 80,042,033,694.63/389,656.08
  6. Step 6: Final answer
    x = 205,417.13

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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.