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Finding the Fourth Proportional to 309,050.40, 462,884.40 and 302,138.40

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Solution

The fourth proportional to 309,050.40, 462,884.40 and 302,138.40 is: 452,531.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,050.40 : 462,884.40 = 302,138.40 : x
  2. Step 2: Convert to fraction form
    309,050.40/462,884.40 = 302,138.40/x
  3. Step 3: Cross multiply
    309,050.40x = 462,884.40 × 302,138.40
  4. Step 4: Simplify right side
    309,050.40x = 139,855,152,000.96
  5. Step 5: Solve for x
    x = 139,855,152,000.96/309,050.40
  6. Step 6: Final answer
    x = 452,531.86

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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.