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Finding the Fourth Proportional to 340,790.29, 470,293.46 and 187,828.87

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Solution

The fourth proportional to 340,790.29, 470,293.46 and 187,828.87 is: 259,205.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,790.29 : 470,293.46 = 187,828.87 : x
  2. Step 2: Convert to fraction form
    340,790.29/470,293.46 = 187,828.87/x
  3. Step 3: Cross multiply
    340,790.29x = 470,293.46 × 187,828.87
  4. Step 4: Simplify right side
    340,790.29x = 88,334,689,688.01
  5. Step 5: Solve for x
    x = 88,334,689,688.01/340,790.29
  6. Step 6: Final answer
    x = 259,205.42

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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.