Home / 287,830.60-397,206.63-158,766.19

Finding the Fourth Proportional to 287,830.60, 397,206.63 and 158,766.19

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Solution

The fourth proportional to 287,830.60, 397,206.63 and 158,766.19 is: 219,097.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,830.60 : 397,206.63 = 158,766.19 : x
  2. Step 2: Convert to fraction form
    287,830.60/397,206.63 = 158,766.19/x
  3. Step 3: Cross multiply
    287,830.60x = 397,206.63 × 158,766.19
  4. Step 4: Simplify right side
    287,830.60x = 63,062,983,287.84
  5. Step 5: Solve for x
    x = 63,062,983,287.84/287,830.60
  6. Step 6: Final answer
    x = 219,097.56

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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.