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Finding the Fourth Proportional to 308,322.90, 462,484.35 and 291,215.70

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Solution

The fourth proportional to 308,322.90, 462,484.35 and 291,215.70 is: 436,823.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,322.90 : 462,484.35 = 291,215.70 : x
  2. Step 2: Convert to fraction form
    308,322.90/462,484.35 = 291,215.70/x
  3. Step 3: Cross multiply
    308,322.90x = 462,484.35 × 291,215.70
  4. Step 4: Simplify right side
    308,322.90x = 134,682,703,724.30
  5. Step 5: Solve for x
    x = 134,682,703,724.30/308,322.90
  6. Step 6: Final answer
    x = 436,823.55

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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.