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Finding the Fourth Proportional to 458,303.67, 687,366.41 and 230,538.56

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Solution

The fourth proportional to 458,303.67, 687,366.41 and 230,538.56 is: 345,763.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,303.67 : 687,366.41 = 230,538.56 : x
  2. Step 2: Convert to fraction form
    458,303.67/687,366.41 = 230,538.56/x
  3. Step 3: Cross multiply
    458,303.67x = 687,366.41 × 230,538.56
  4. Step 4: Simplify right side
    458,303.67x = 158,464,457,764.25
  5. Step 5: Solve for x
    x = 158,464,457,764.25/458,303.67
  6. Step 6: Final answer
    x = 345,763.01

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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.