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Finding the Fourth Proportional to 375,646.73, 518,391.50 and 203,569.47

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Solution

The fourth proportional to 375,646.73, 518,391.50 and 203,569.47 is: 280,925.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,646.73 : 518,391.50 = 203,569.47 : x
  2. Step 2: Convert to fraction form
    375,646.73/518,391.50 = 203,569.47/x
  3. Step 3: Cross multiply
    375,646.73x = 518,391.50 × 203,569.47
  4. Step 4: Simplify right side
    375,646.73x = 105,528,681,889.66
  5. Step 5: Solve for x
    x = 105,528,681,889.66/375,646.73
  6. Step 6: Final answer
    x = 280,925.33

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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.