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Finding the Fourth Proportional to 286,697.39, 395,666.30 and 159,384.83

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Solution

The fourth proportional to 286,697.39, 395,666.30 and 159,384.83 is: 219,964.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,697.39 : 395,666.30 = 159,384.83 : x
  2. Step 2: Convert to fraction form
    286,697.39/395,666.30 = 159,384.83/x
  3. Step 3: Cross multiply
    286,697.39x = 395,666.30 × 159,384.83
  4. Step 4: Simplify right side
    286,697.39x = 63,063,204,382.36
  5. Step 5: Solve for x
    x = 63,063,204,382.36/286,697.39
  6. Step 6: Final answer
    x = 219,964.35

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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.