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Finding the Fourth Proportional to 312,360.48, 431,058.24 and 169,122.24

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Solution

The fourth proportional to 312,360.48, 431,058.24 and 169,122.24 is: 233,389.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,360.48 : 431,058.24 = 169,122.24 : x
  2. Step 2: Convert to fraction form
    312,360.48/431,058.24 = 169,122.24/x
  3. Step 3: Cross multiply
    312,360.48x = 431,058.24 × 169,122.24
  4. Step 4: Simplify right side
    312,360.48x = 72,901,535,119.26
  5. Step 5: Solve for x
    x = 72,901,535,119.26/312,360.48
  6. Step 6: Final answer
    x = 233,389.11

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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.