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Finding the Fourth Proportional to 642,070.72, 963,169.78 and 237,369

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Solution

The fourth proportional to 642,070.72, 963,169.78 and 237,369 is: 356,077.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,070.72 : 963,169.78 = 237,369 : x
  2. Step 2: Convert to fraction form
    642,070.72/963,169.78 = 237,369/x
  3. Step 3: Cross multiply
    642,070.72x = 963,169.78 × 237,369
  4. Step 4: Simplify right side
    642,070.72x = 228,626,647,508.82
  5. Step 5: Solve for x
    x = 228,626,647,508.82/642,070.72
  6. Step 6: Final answer
    x = 356,077.05

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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.