Home / 400,922.69-553,273.28-239,777.74

Finding the Fourth Proportional to 400,922.69, 553,273.28 and 239,777.74

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Solution

The fourth proportional to 400,922.69, 553,273.28 and 239,777.74 is: 330,893.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,922.69 : 553,273.28 = 239,777.74 : x
  2. Step 2: Convert to fraction form
    400,922.69/553,273.28 = 239,777.74/x
  3. Step 3: Cross multiply
    400,922.69x = 553,273.28 × 239,777.74
  4. Step 4: Simplify right side
    400,922.69x = 132,662,615,897.05
  5. Step 5: Solve for x
    x = 132,662,615,897.05/400,922.69
  6. Step 6: Final answer
    x = 330,893.26

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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.