Home / 287,702.11-397,028.94-160,377.71

Finding the Fourth Proportional to 287,702.11, 397,028.94 and 160,377.71

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Solution

The fourth proportional to 287,702.11, 397,028.94 and 160,377.71 is: 221,321.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,702.11 : 397,028.94 = 160,377.71 : x
  2. Step 2: Convert to fraction form
    287,702.11/397,028.94 = 160,377.71/x
  3. Step 3: Cross multiply
    287,702.11x = 397,028.94 × 160,377.71
  4. Step 4: Simplify right side
    287,702.11x = 63,674,590,215.78
  5. Step 5: Solve for x
    x = 63,674,590,215.78/287,702.11
  6. Step 6: Final answer
    x = 221,321.25

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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.