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Finding the Fourth Proportional to 340,365.96, 469,688.63 and 187,400.97

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Solution

The fourth proportional to 340,365.96, 469,688.63 and 187,400.97 is: 258,604.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,365.96 : 469,688.63 = 187,400.97 : x
  2. Step 2: Convert to fraction form
    340,365.96/469,688.63 = 187,400.97/x
  3. Step 3: Cross multiply
    340,365.96x = 469,688.63 × 187,400.97
  4. Step 4: Simplify right side
    340,365.96x = 88,020,103,922.97
  5. Step 5: Solve for x
    x = 88,020,103,922.97/340,365.96
  6. Step 6: Final answer
    x = 258,604.31

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1.5x scale

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.