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Finding the Fourth Proportional to 458,367.60, 687,560.28 and 158,858.04

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Solution

The fourth proportional to 458,367.60, 687,560.28 and 158,858.04 is: 238,290.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,367.60 : 687,560.28 = 158,858.04 : x
  2. Step 2: Convert to fraction form
    458,367.60/687,560.28 = 158,858.04/x
  3. Step 3: Cross multiply
    458,367.60x = 687,560.28 × 158,858.04
  4. Step 4: Simplify right side
    458,367.60x = 109,224,478,462.65
  5. Step 5: Solve for x
    x = 109,224,478,462.65/458,367.60
  6. Step 6: Final answer
    x = 238,290.14

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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.