Home / 378,972.04-522,967.71-209,202.52

Finding the Fourth Proportional to 378,972.04, 522,967.71 and 209,202.52

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Solution

The fourth proportional to 378,972.04, 522,967.71 and 209,202.52 is: 288,691.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,972.04 : 522,967.71 = 209,202.52 : x
  2. Step 2: Convert to fraction form
    378,972.04/522,967.71 = 209,202.52/x
  3. Step 3: Cross multiply
    378,972.04x = 522,967.71 × 209,202.52
  4. Step 4: Simplify right side
    378,972.04x = 109,406,162,810.63
  5. Step 5: Solve for x
    x = 109,406,162,810.63/378,972.04
  6. Step 6: Final answer
    x = 288,691.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.