Home / 287,669.04-396,996.72-160,345.56

Finding the Fourth Proportional to 287,669.04, 396,996.72 and 160,345.56

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Solution

The fourth proportional to 287,669.04, 396,996.72 and 160,345.56 is: 221,284.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,669.04 : 396,996.72 = 160,345.56 : x
  2. Step 2: Convert to fraction form
    287,669.04/396,996.72 = 160,345.56/x
  3. Step 3: Cross multiply
    287,669.04x = 396,996.72 × 160,345.56
  4. Step 4: Simplify right side
    287,669.04x = 63,656,661,386.56
  5. Step 5: Solve for x
    x = 63,656,661,386.56/287,669.04
  6. Step 6: Final answer
    x = 221,284.37

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1.5x scale

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.