Home / 404,419.36-558,104.40-223,139.20

Finding the Fourth Proportional to 404,419.36, 558,104.40 and 223,139.20

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Solution

The fourth proportional to 404,419.36, 558,104.40 and 223,139.20 is: 307,935.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,419.36 : 558,104.40 = 223,139.20 : x
  2. Step 2: Convert to fraction form
    404,419.36/558,104.40 = 223,139.20/x
  3. Step 3: Cross multiply
    404,419.36x = 558,104.40 × 223,139.20
  4. Step 4: Simplify right side
    404,419.36x = 124,534,969,332.48
  5. Step 5: Solve for x
    x = 124,534,969,332.48/404,419.36
  6. Step 6: Final answer
    x = 307,935.23

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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.