Home / 400,931.93-553,286.02-239,786.96

Finding the Fourth Proportional to 400,931.93, 553,286.02 and 239,786.96

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Solution

The fourth proportional to 400,931.93, 553,286.02 and 239,786.96 is: 330,905.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,931.93 : 553,286.02 = 239,786.96 : x
  2. Step 2: Convert to fraction form
    400,931.93/553,286.02 = 239,786.96/x
  3. Step 3: Cross multiply
    400,931.93x = 553,286.02 × 239,786.96
  4. Step 4: Simplify right side
    400,931.93x = 132,670,768,780.93
  5. Step 5: Solve for x
    x = 132,670,768,780.93/400,931.93
  6. Step 6: Final answer
    x = 330,905.97

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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.