Home / 312,472.98-431,213.04-169,233.21

Finding the Fourth Proportional to 312,472.98, 431,213.04 and 169,233.21

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Solution

The fourth proportional to 312,472.98, 431,213.04 and 169,233.21 is: 233,542.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,472.98 : 431,213.04 = 169,233.21 : x
  2. Step 2: Convert to fraction form
    312,472.98/431,213.04 = 169,233.21/x
  3. Step 3: Cross multiply
    312,472.98x = 431,213.04 × 169,233.21
  4. Step 4: Simplify right side
    312,472.98x = 72,975,566,953.06
  5. Step 5: Solve for x
    x = 72,975,566,953.06/312,472.98
  6. Step 6: Final answer
    x = 233,542.01

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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.