Home / 287,823.12-397,202.26-158,765.51

Finding the Fourth Proportional to 287,823.12, 397,202.26 and 158,765.51

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Solution

The fourth proportional to 287,823.12, 397,202.26 and 158,765.51 is: 219,099.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,823.12 : 397,202.26 = 158,765.51 : x
  2. Step 2: Convert to fraction form
    287,823.12/397,202.26 = 158,765.51/x
  3. Step 3: Cross multiply
    287,823.12x = 397,202.26 × 158,765.51
  4. Step 4: Simplify right side
    287,823.12x = 63,062,018,588.23
  5. Step 5: Solve for x
    x = 63,062,018,588.23/287,823.12
  6. Step 6: Final answer
    x = 219,099.91

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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.