Home / 378,177.02-521,881.47-208,411.14

Finding the Fourth Proportional to 378,177.02, 521,881.47 and 208,411.14

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Solution

The fourth proportional to 378,177.02, 521,881.47 and 208,411.14 is: 287,605.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,177.02 : 521,881.47 = 208,411.14 : x
  2. Step 2: Convert to fraction form
    378,177.02/521,881.47 = 208,411.14/x
  3. Step 3: Cross multiply
    378,177.02x = 521,881.47 × 208,411.14
  4. Step 4: Simplify right side
    378,177.02x = 108,765,912,107.58
  5. Step 5: Solve for x
    x = 108,765,912,107.58/378,177.02
  6. Step 6: Final answer
    x = 287,605.82

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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.