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Finding the Fourth Proportional to 608,508.60, 912,849.30 and 187,740.60

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Solution

The fourth proportional to 608,508.60, 912,849.30 and 187,740.60 is: 281,637.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,508.60 : 912,849.30 = 187,740.60 : x
  2. Step 2: Convert to fraction form
    608,508.60/912,849.30 = 187,740.60/x
  3. Step 3: Cross multiply
    608,508.60x = 912,849.30 × 187,740.60
  4. Step 4: Simplify right side
    608,508.60x = 171,378,875,291.58
  5. Step 5: Solve for x
    x = 171,378,875,291.58/608,508.60
  6. Step 6: Final answer
    x = 281,637.56

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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.