Home / 287,587.69-396,807.05-165,072.59

Finding the Fourth Proportional to 287,587.69, 396,807.05 and 165,072.59

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Solution

The fourth proportional to 287,587.69, 396,807.05 and 165,072.59 is: 227,763.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,587.69 : 396,807.05 = 165,072.59 : x
  2. Step 2: Convert to fraction form
    287,587.69/396,807.05 = 165,072.59/x
  3. Step 3: Cross multiply
    287,587.69x = 396,807.05 × 165,072.59
  4. Step 4: Simplify right side
    287,587.69x = 65,501,967,473.76
  5. Step 5: Solve for x
    x = 65,501,967,473.76/287,587.69
  6. Step 6: Final answer
    x = 227,763.46

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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.