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Finding the Fourth Proportional to 404,533.71, 558,016.02 and 261,378.18

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Solution

The fourth proportional to 404,533.71, 558,016.02 and 261,378.18 is: 360,546.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,533.71 : 558,016.02 = 261,378.18 : x
  2. Step 2: Convert to fraction form
    404,533.71/558,016.02 = 261,378.18/x
  3. Step 3: Cross multiply
    404,533.71x = 558,016.02 × 261,378.18
  4. Step 4: Simplify right side
    404,533.71x = 145,853,211,718.44
  5. Step 5: Solve for x
    x = 145,853,211,718.44/404,533.71
  6. Step 6: Final answer
    x = 360,546.50

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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.