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Finding the Fourth Proportional to 423,416.20, 584,217.87 and 251,245.23

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Solution

The fourth proportional to 423,416.20, 584,217.87 and 251,245.23 is: 346,661.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,416.20 : 584,217.87 = 251,245.23 : x
  2. Step 2: Convert to fraction form
    423,416.20/584,217.87 = 251,245.23/x
  3. Step 3: Cross multiply
    423,416.20x = 584,217.87 × 251,245.23
  4. Step 4: Simplify right side
    423,416.20x = 146,781,953,118.26
  5. Step 5: Solve for x
    x = 146,781,953,118.26/423,416.20
  6. Step 6: Final answer
    x = 346,661.16

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.