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Finding the Fourth Proportional to 375,500.84, 518,188.91 and 203,422.05

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Solution

The fourth proportional to 375,500.84, 518,188.91 and 203,422.05 is: 280,721.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,500.84 : 518,188.91 = 203,422.05 : x
  2. Step 2: Convert to fraction form
    375,500.84/518,188.91 = 203,422.05/x
  3. Step 3: Cross multiply
    375,500.84x = 518,188.91 × 203,422.05
  4. Step 4: Simplify right side
    375,500.84x = 105,411,049,342.36
  5. Step 5: Solve for x
    x = 105,411,049,342.36/375,500.84
  6. Step 6: Final answer
    x = 280,721.21

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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.