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Finding the Fourth Proportional to 286,574.59, 395,465.07 and 159,246.91

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Solution

The fourth proportional to 286,574.59, 395,465.07 and 159,246.91 is: 219,756.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,574.59 : 395,465.07 = 159,246.91 : x
  2. Step 2: Convert to fraction form
    286,574.59/395,465.07 = 159,246.91/x
  3. Step 3: Cross multiply
    286,574.59x = 395,465.07 × 159,246.91
  4. Step 4: Simplify right side
    286,574.59x = 62,976,590,410.43
  5. Step 5: Solve for x
    x = 62,976,590,410.43/286,574.59
  6. Step 6: Final answer
    x = 219,756.37

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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.