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Finding the Fourth Proportional to 340,859.14, 470,364.48 and 187,889.42

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Solution

The fourth proportional to 340,859.14, 470,364.48 and 187,889.42 is: 259,275.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,859.14 : 470,364.48 = 187,889.42 : x
  2. Step 2: Convert to fraction form
    340,859.14/470,364.48 = 187,889.42/x
  3. Step 3: Cross multiply
    340,859.14x = 470,364.48 × 187,889.42
  4. Step 4: Simplify right side
    340,859.14x = 88,376,510,511.71
  5. Step 5: Solve for x
    x = 88,376,510,511.71/340,859.14
  6. Step 6: Final answer
    x = 259,275.76

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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.