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Finding the Fourth Proportional to 340,372.83, 469,710.62 and 187,407.82

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Solution

The fourth proportional to 340,372.83, 469,710.62 and 187,407.82 is: 258,620.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,372.83 : 469,710.62 = 187,407.82 : x
  2. Step 2: Convert to fraction form
    340,372.83/469,710.62 = 187,407.82/x
  3. Step 3: Cross multiply
    340,372.83x = 469,710.62 × 187,407.82
  4. Step 4: Simplify right side
    340,372.83x = 88,027,443,325.05
  5. Step 5: Solve for x
    x = 88,027,443,325.05/340,372.83
  6. Step 6: Final answer
    x = 258,620.65

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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.