Home / 307,868.40-424,632.60-223,127.28

Finding the Fourth Proportional to 307,868.40, 424,632.60 and 223,127.28

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Solution

The fourth proportional to 307,868.40, 424,632.60 and 223,127.28 is: 307,752.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,868.40 : 424,632.60 = 223,127.28 : x
  2. Step 2: Convert to fraction form
    307,868.40/424,632.60 = 223,127.28/x
  3. Step 3: Cross multiply
    307,868.40x = 424,632.60 × 223,127.28
  4. Step 4: Simplify right side
    307,868.40x = 94,747,117,037.33
  5. Step 5: Solve for x
    x = 94,747,117,037.33/307,868.40
  6. Step 6: Final answer
    x = 307,752.00

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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.