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Finding the Fourth Proportional to 404,501.70, 558,208.65 and 223,215.30

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Solution

The fourth proportional to 404,501.70, 558,208.65 and 223,215.30 is: 308,035.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,501.70 : 558,208.65 = 223,215.30 : x
  2. Step 2: Convert to fraction form
    404,501.70/558,208.65 = 223,215.30/x
  3. Step 3: Cross multiply
    404,501.70x = 558,208.65 × 223,215.30
  4. Step 4: Simplify right side
    404,501.70x = 124,600,711,272.35
  5. Step 5: Solve for x
    x = 124,600,711,272.35/404,501.70
  6. Step 6: Final answer
    x = 308,035.07

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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.