Home / 312,784.02-431,642.67-169,543.41

Finding the Fourth Proportional to 312,784.02, 431,642.67 and 169,543.41

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Solution

The fourth proportional to 312,784.02, 431,642.67 and 169,543.41 is: 233,970.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,784.02 : 431,642.67 = 169,543.41 : x
  2. Step 2: Convert to fraction form
    312,784.02/431,642.67 = 169,543.41/x
  3. Step 3: Cross multiply
    312,784.02x = 431,642.67 × 169,543.41
  4. Step 4: Simplify right side
    312,784.02x = 73,182,170,173.30
  5. Step 5: Solve for x
    x = 73,182,170,173.30/312,784.02
  6. Step 6: Final answer
    x = 233,970.30

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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.