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Finding the Fourth Proportional to 404,931.29, 558,809.39 and 223,647.84

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Solution

The fourth proportional to 404,931.29, 558,809.39 and 223,647.84 is: 308,636.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,931.29 : 558,809.39 = 223,647.84 : x
  2. Step 2: Convert to fraction form
    404,931.29/558,809.39 = 223,647.84/x
  3. Step 3: Cross multiply
    404,931.29x = 558,809.39 × 223,647.84
  4. Step 4: Simplify right side
    404,931.29x = 124,976,513,604.34
  5. Step 5: Solve for x
    x = 124,976,513,604.34/404,931.29
  6. Step 6: Final answer
    x = 308,636.35

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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.