Home / 287,829.60-397,205.25-158,765.19

Finding the Fourth Proportional to 287,829.60, 397,205.25 and 158,765.19

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Solution

The fourth proportional to 287,829.60, 397,205.25 and 158,765.19 is: 219,096.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,829.60 : 397,205.25 = 158,765.19 : x
  2. Step 2: Convert to fraction form
    287,829.60/397,205.25 = 158,765.19/x
  3. Step 3: Cross multiply
    287,829.60x = 397,205.25 × 158,765.19
  4. Step 4: Simplify right side
    287,829.60x = 63,062,366,985.25
  5. Step 5: Solve for x
    x = 63,062,366,985.25/287,829.60
  6. Step 6: Final answer
    x = 219,096.18

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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.