Home / 378,969.04-522,963.57-209,199.52

Finding the Fourth Proportional to 378,969.04, 522,963.57 and 209,199.52

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Solution

The fourth proportional to 378,969.04, 522,963.57 and 209,199.52 is: 288,687.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,969.04 : 522,963.57 = 209,199.52 : x
  2. Step 2: Convert to fraction form
    378,969.04/522,963.57 = 209,199.52/x
  3. Step 3: Cross multiply
    378,969.04x = 522,963.57 × 209,199.52
  4. Step 4: Simplify right side
    378,969.04x = 109,403,727,821.49
  5. Step 5: Solve for x
    x = 109,403,727,821.49/378,969.04
  6. Step 6: Final answer
    x = 288,687.77

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1.5x scale

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.