Home / 307,089.06-423,776.55-171,122.46

Finding the Fourth Proportional to 307,089.06, 423,776.55 and 171,122.46

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Solution

The fourth proportional to 307,089.06, 423,776.55 and 171,122.46 is: 236,145.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,089.06 : 423,776.55 = 171,122.46 : x
  2. Step 2: Convert to fraction form
    307,089.06/423,776.55 = 171,122.46/x
  3. Step 3: Cross multiply
    307,089.06x = 423,776.55 × 171,122.46
  4. Step 4: Simplify right side
    307,089.06x = 72,517,685,726.31
  5. Step 5: Solve for x
    x = 72,517,685,726.31/307,089.06
  6. Step 6: Final answer
    x = 236,145.45

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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.