Home / 312,600.48-431,389.08-169,360.53

Finding the Fourth Proportional to 312,600.48, 431,389.08 and 169,360.53

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Solution

The fourth proportional to 312,600.48, 431,389.08 and 169,360.53 is: 233,717.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,600.48 : 431,389.08 = 169,360.53 : x
  2. Step 2: Convert to fraction form
    312,600.48/431,389.08 = 169,360.53/x
  3. Step 3: Cross multiply
    312,600.48x = 431,389.08 × 169,360.53
  4. Step 4: Simplify right side
    312,600.48x = 73,060,283,225.01
  5. Step 5: Solve for x
    x = 73,060,283,225.01/312,600.48
  6. Step 6: Final answer
    x = 233,717.76

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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.