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Finding the Fourth Proportional to 608,499.60, 912,835.80 and 187,731.60

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Solution

The fourth proportional to 608,499.60, 912,835.80 and 187,731.60 is: 281,624.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,499.60 : 912,835.80 = 187,731.60 : x
  2. Step 2: Convert to fraction form
    608,499.60/912,835.80 = 187,731.60/x
  3. Step 3: Cross multiply
    608,499.60x = 912,835.80 × 187,731.60
  4. Step 4: Simplify right side
    608,499.60x = 171,368,125,271.28
  5. Step 5: Solve for x
    x = 171,368,125,271.28/608,499.60
  6. Step 6: Final answer
    x = 281,624.06

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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.