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Finding the Fourth Proportional to 381,349.77, 526,132.33 and 217,889.02

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Solution

The fourth proportional to 381,349.77, 526,132.33 and 217,889.02 is: 300,612.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,349.77 : 526,132.33 = 217,889.02 : x
  2. Step 2: Convert to fraction form
    381,349.77/526,132.33 = 217,889.02/x
  3. Step 3: Cross multiply
    381,349.77x = 526,132.33 × 217,889.02
  4. Step 4: Simplify right side
    381,349.77x = 114,638,457,774.02
  5. Step 5: Solve for x
    x = 114,638,457,774.02/381,349.77
  6. Step 6: Final answer
    x = 300,612.37

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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.