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Finding the Fourth Proportional to 381,243.16, 526,132.74 and 211,477.24

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Solution

The fourth proportional to 381,243.16, 526,132.74 and 211,477.24 is: 291,848.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,243.16 : 526,132.74 = 211,477.24 : x
  2. Step 2: Convert to fraction form
    381,243.16/526,132.74 = 211,477.24/x
  3. Step 3: Cross multiply
    381,243.16x = 526,132.74 × 211,477.24
  4. Step 4: Simplify right side
    381,243.16x = 111,265,099,728.84
  5. Step 5: Solve for x
    x = 111,265,099,728.84/381,243.16
  6. Step 6: Final answer
    x = 291,848.12

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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.