Home / 378,373.38-522,159.27-208,613.58

Finding the Fourth Proportional to 378,373.38, 522,159.27 and 208,613.58

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Solution

The fourth proportional to 378,373.38, 522,159.27 and 208,613.58 is: 287,888.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,373.38 : 522,159.27 = 208,613.58 : x
  2. Step 2: Convert to fraction form
    378,373.38/522,159.27 = 208,613.58/x
  3. Step 3: Cross multiply
    378,373.38x = 522,159.27 × 208,613.58
  4. Step 4: Simplify right side
    378,373.38x = 108,929,514,644.89
  5. Step 5: Solve for x
    x = 108,929,514,644.89/378,373.38
  6. Step 6: Final answer
    x = 287,888.95

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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.