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Finding the Fourth Proportional to 373,635.65, 515,628.59 and 212,513.91

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Solution

The fourth proportional to 373,635.65, 515,628.59 and 212,513.91 is: 293,275.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,635.65 : 515,628.59 = 212,513.91 : x
  2. Step 2: Convert to fraction form
    373,635.65/515,628.59 = 212,513.91/x
  3. Step 3: Cross multiply
    373,635.65x = 515,628.59 × 212,513.91
  4. Step 4: Simplify right side
    373,635.65x = 109,578,246,706.12
  5. Step 5: Solve for x
    x = 109,578,246,706.12/373,635.65
  6. Step 6: Final answer
    x = 293,275.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.