Home / 404,705.20-558,490.12-223,417.20

Finding the Fourth Proportional to 404,705.20, 558,490.12 and 223,417.20

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Solution

The fourth proportional to 404,705.20, 558,490.12 and 223,417.20 is: 308,314.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,705.20 : 558,490.12 = 223,417.20 : x
  2. Step 2: Convert to fraction form
    404,705.20/558,490.12 = 223,417.20/x
  3. Step 3: Cross multiply
    404,705.20x = 558,490.12 × 223,417.20
  4. Step 4: Simplify right side
    404,705.20x = 124,776,298,838.06
  5. Step 5: Solve for x
    x = 124,776,298,838.06/404,705.20
  6. Step 6: Final answer
    x = 308,314.05

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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.