Home / 307,406.24-424,219.80-171,440.36

Finding the Fourth Proportional to 307,406.24, 424,219.80 and 171,440.36

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Solution

The fourth proportional to 307,406.24, 424,219.80 and 171,440.36 is: 236,587.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,406.24 : 424,219.80 = 171,440.36 : x
  2. Step 2: Convert to fraction form
    307,406.24/424,219.80 = 171,440.36/x
  3. Step 3: Cross multiply
    307,406.24x = 424,219.80 × 171,440.36
  4. Step 4: Simplify right side
    307,406.24x = 72,728,395,231.13
  5. Step 5: Solve for x
    x = 72,728,395,231.13/307,406.24
  6. Step 6: Final answer
    x = 236,587.24

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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.