Home / 404,643.23-558,407.69-223,355.21

Finding the Fourth Proportional to 404,643.23, 558,407.69 and 223,355.21

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Solution

The fourth proportional to 404,643.23, 558,407.69 and 223,355.21 is: 308,230.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,643.23 : 558,407.69 = 223,355.21 : x
  2. Step 2: Convert to fraction form
    404,643.23/558,407.69 = 223,355.21/x
  3. Step 3: Cross multiply
    404,643.23x = 558,407.69 × 223,355.21
  4. Step 4: Simplify right side
    404,643.23x = 124,723,262,956.75
  5. Step 5: Solve for x
    x = 124,723,262,956.75/404,643.23
  6. Step 6: Final answer
    x = 308,230.20

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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.