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Finding the Fourth Proportional to 404,505.66, 558,214.02 and 223,219.20

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Solution

The fourth proportional to 404,505.66, 558,214.02 and 223,219.20 is: 308,040.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,505.66 : 558,214.02 = 223,219.20 : x
  2. Step 2: Convert to fraction form
    404,505.66/558,214.02 = 223,219.20/x
  3. Step 3: Cross multiply
    404,505.66x = 558,214.02 × 223,219.20
  4. Step 4: Simplify right side
    404,505.66x = 124,604,086,973.18
  5. Step 5: Solve for x
    x = 124,604,086,973.18/404,505.66
  6. Step 6: Final answer
    x = 308,040.40

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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.