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Finding the Fourth Proportional to 249,933.40, 344,549.40 and 178,188.86

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Solution

The fourth proportional to 249,933.40, 344,549.40 and 178,188.86 is: 245,644.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,933.40 : 344,549.40 = 178,188.86 : x
  2. Step 2: Convert to fraction form
    249,933.40/344,549.40 = 178,188.86/x
  3. Step 3: Cross multiply
    249,933.40x = 344,549.40 × 178,188.86
  4. Step 4: Simplify right side
    249,933.40x = 61,394,864,992.85
  5. Step 5: Solve for x
    x = 61,394,864,992.85/249,933.40
  6. Step 6: Final answer
    x = 245,644.90

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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.