Home / 208,862.78-287,502.21-180,273.15

Finding the Fourth Proportional to 208,862.78, 287,502.21 and 180,273.15

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Solution

The fourth proportional to 208,862.78, 287,502.21 and 180,273.15 is: 248,148.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,862.78 : 287,502.21 = 180,273.15 : x
  2. Step 2: Convert to fraction form
    208,862.78/287,502.21 = 180,273.15/x
  3. Step 3: Cross multiply
    208,862.78x = 287,502.21 × 180,273.15
  4. Step 4: Simplify right side
    208,862.78x = 51,828,929,028.66
  5. Step 5: Solve for x
    x = 51,828,929,028.66/208,862.78
  6. Step 6: Final answer
    x = 248,148.24

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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.