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Finding the Fourth Proportional to 282,966.82, 390,655.61 and 187,602.68

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Solution

The fourth proportional to 282,966.82, 390,655.61 and 187,602.68 is: 258,998.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,966.82 : 390,655.61 = 187,602.68 : x
  2. Step 2: Convert to fraction form
    282,966.82/390,655.61 = 187,602.68/x
  3. Step 3: Cross multiply
    282,966.82x = 390,655.61 × 187,602.68
  4. Step 4: Simplify right side
    282,966.82x = 73,288,040,135.17
  5. Step 5: Solve for x
    x = 73,288,040,135.17/282,966.82
  6. Step 6: Final answer
    x = 258,998.71

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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.