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Finding the Fourth Proportional to 400,655.36, 552,883.35 and 219,332.54

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Solution

The fourth proportional to 400,655.36, 552,883.35 and 219,332.54 is: 302,667.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,655.36 : 552,883.35 = 219,332.54 : x
  2. Step 2: Convert to fraction form
    400,655.36/552,883.35 = 219,332.54/x
  3. Step 3: Cross multiply
    400,655.36x = 552,883.35 × 219,332.54
  4. Step 4: Simplify right side
    400,655.36x = 121,265,309,479.21
  5. Step 5: Solve for x
    x = 121,265,309,479.21/400,655.36
  6. Step 6: Final answer
    x = 302,667.38

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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.