Home / 287,828.10-397,203.18-158,763.69

Finding the Fourth Proportional to 287,828.10, 397,203.18 and 158,763.69

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Solution

The fourth proportional to 287,828.10, 397,203.18 and 158,763.69 is: 219,094.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,828.10 : 397,203.18 = 158,763.69 : x
  2. Step 2: Convert to fraction form
    287,828.10/397,203.18 = 158,763.69/x
  3. Step 3: Cross multiply
    287,828.10x = 397,203.18 × 158,763.69
  4. Step 4: Simplify right side
    287,828.10x = 63,061,442,536.53
  5. Step 5: Solve for x
    x = 63,061,442,536.53/287,828.10
  6. Step 6: Final answer
    x = 219,094.11

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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.