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Finding the Fourth Proportional to 340,779.25, 470,256.16 and 187,816.96

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Solution

The fourth proportional to 340,779.25, 470,256.16 and 187,816.96 is: 259,176.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,779.25 : 470,256.16 = 187,816.96 : x
  2. Step 2: Convert to fraction form
    340,779.25/470,256.16 = 187,816.96/x
  3. Step 3: Cross multiply
    340,779.25x = 470,256.16 × 187,816.96
  4. Step 4: Simplify right side
    340,779.25x = 88,322,082,392.47
  5. Step 5: Solve for x
    x = 88,322,082,392.47/340,779.25
  6. Step 6: Final answer
    x = 259,176.82

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Why These Related Problems?

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