Home / 453,921.37-680,685.12-154,321.47

Finding the Fourth Proportional to 453,921.37, 680,685.12 and 154,321.47

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Solution

The fourth proportional to 453,921.37, 680,685.12 and 154,321.47 is: 231,415.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,921.37 : 680,685.12 = 154,321.47 : x
  2. Step 2: Convert to fraction form
    453,921.37/680,685.12 = 154,321.47/x
  3. Step 3: Cross multiply
    453,921.37x = 680,685.12 × 154,321.47
  4. Step 4: Simplify right side
    453,921.37x = 105,044,328,325.53
  5. Step 5: Solve for x
    x = 105,044,328,325.53/453,921.37
  6. Step 6: Final answer
    x = 231,415.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.