Home / 400,975.13-553,345.65-219,693.93

Finding the Fourth Proportional to 400,975.13, 553,345.65 and 219,693.93

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Solution

The fourth proportional to 400,975.13, 553,345.65 and 219,693.93 is: 303,177.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,975.13 : 553,345.65 = 219,693.93 : x
  2. Step 2: Convert to fraction form
    400,975.13/553,345.65 = 219,693.93/x
  3. Step 3: Cross multiply
    400,975.13x = 553,345.65 × 219,693.93
  4. Step 4: Simplify right side
    400,975.13x = 121,566,680,496.91
  5. Step 5: Solve for x
    x = 121,566,680,496.91/400,975.13
  6. Step 6: Final answer
    x = 303,177.61

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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.