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Finding the Fourth Proportional to 308,260.80, 462,384.72 and 142,048.80

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Solution

The fourth proportional to 308,260.80, 462,384.72 and 142,048.80 is: 213,070.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,260.80 : 462,384.72 = 142,048.80 : x
  2. Step 2: Convert to fraction form
    308,260.80/462,384.72 = 142,048.80/x
  3. Step 3: Cross multiply
    308,260.80x = 462,384.72 × 142,048.80
  4. Step 4: Simplify right side
    308,260.80x = 65,681,194,614.34
  5. Step 5: Solve for x
    x = 65,681,194,614.34/308,260.80
  6. Step 6: Final answer
    x = 213,070.21

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1.5x scale

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.