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Finding the Fourth Proportional to 282,283.80, 423,289.62 and 163,989

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Solution

The fourth proportional to 282,283.80, 423,289.62 and 163,989 is: 245,904.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,283.80 : 423,289.62 = 163,989 : x
  2. Step 2: Convert to fraction form
    282,283.80/423,289.62 = 163,989/x
  3. Step 3: Cross multiply
    282,283.80x = 423,289.62 × 163,989
  4. Step 4: Simplify right side
    282,283.80x = 69,414,841,494.18
  5. Step 5: Solve for x
    x = 69,414,841,494.18/282,283.80
  6. Step 6: Final answer
    x = 245,904.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.