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Finding the Fourth Proportional to 458,858.67, 688,386.51 and 192,465.65

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Solution

The fourth proportional to 458,858.67, 688,386.51 and 192,465.65 is: 288,739.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,858.67 : 688,386.51 = 192,465.65 : x
  2. Step 2: Convert to fraction form
    458,858.67/688,386.51 = 192,465.65/x
  3. Step 3: Cross multiply
    458,858.67x = 688,386.51 × 192,465.65
  4. Step 4: Simplify right side
    458,858.67x = 132,490,753,656.45
  5. Step 5: Solve for x
    x = 132,490,753,656.45/458,858.67
  6. Step 6: Final answer
    x = 288,739.78

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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.