Home / 287,670.04-396,998.10-160,346.56

Finding the Fourth Proportional to 287,670.04, 396,998.10 and 160,346.56

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Solution

The fourth proportional to 287,670.04, 396,998.10 and 160,346.56 is: 221,285.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,670.04 : 396,998.10 = 160,346.56 : x
  2. Step 2: Convert to fraction form
    287,670.04/396,998.10 = 160,346.56/x
  3. Step 3: Cross multiply
    287,670.04x = 396,998.10 × 160,346.56
  4. Step 4: Simplify right side
    287,670.04x = 63,657,279,661.54
  5. Step 5: Solve for x
    x = 63,657,279,661.54/287,670.04
  6. Step 6: Final answer
    x = 221,285.75

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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.