Home / 287,566.10-396,842.80-166,779.02

Finding the Fourth Proportional to 287,566.10, 396,842.80 and 166,779.02

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Solution

The fourth proportional to 287,566.10, 396,842.80 and 166,779.02 is: 230,155.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,566.10 : 396,842.80 = 166,779.02 : x
  2. Step 2: Convert to fraction form
    287,566.10/396,842.80 = 166,779.02/x
  3. Step 3: Cross multiply
    287,566.10x = 396,842.80 × 166,779.02
  4. Step 4: Simplify right side
    287,566.10x = 66,185,053,278.06
  5. Step 5: Solve for x
    x = 66,185,053,278.06/287,566.10
  6. Step 6: Final answer
    x = 230,155.97

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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.