Home / 287,570.22-396,849.51-158,513.37

Finding the Fourth Proportional to 287,570.22, 396,849.51 and 158,513.37

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Solution

The fourth proportional to 287,570.22, 396,849.51 and 158,513.37 is: 218,749.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,570.22 : 396,849.51 = 158,513.37 : x
  2. Step 2: Convert to fraction form
    287,570.22/396,849.51 = 158,513.37/x
  3. Step 3: Cross multiply
    287,570.22x = 396,849.51 × 158,513.37
  4. Step 4: Simplify right side
    287,570.22x = 62,905,953,212.95
  5. Step 5: Solve for x
    x = 62,905,953,212.95/287,570.22
  6. Step 6: Final answer
    x = 218,749.89

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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.