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Finding the Fourth Proportional to 608,212.54, 913,146.18 and 342,160.30

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Solution

The fourth proportional to 608,212.54, 913,146.18 and 342,160.30 is: 513,705.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,212.54 : 913,146.18 = 342,160.30 : x
  2. Step 2: Convert to fraction form
    608,212.54/913,146.18 = 342,160.30/x
  3. Step 3: Cross multiply
    608,212.54x = 913,146.18 × 342,160.30
  4. Step 4: Simplify right side
    608,212.54x = 312,442,370,892.65
  5. Step 5: Solve for x
    x = 312,442,370,892.65/608,212.54
  6. Step 6: Final answer
    x = 513,705.90

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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.