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Finding the Fourth Proportional to 282,799.61, 390,222.86 and 166,443.92

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Solution

The fourth proportional to 282,799.61, 390,222.86 and 166,443.92 is: 229,668.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,799.61 : 390,222.86 = 166,443.92 : x
  2. Step 2: Convert to fraction form
    282,799.61/390,222.86 = 166,443.92/x
  3. Step 3: Cross multiply
    282,799.61x = 390,222.86 × 166,443.92
  4. Step 4: Simplify right side
    282,799.61x = 64,950,219,708.68
  5. Step 5: Solve for x
    x = 64,950,219,708.68/282,799.61
  6. Step 6: Final answer
    x = 229,668.71

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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.