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Finding the Fourth Proportional to 272,474.92, 376,011.78 and 153,242.92

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Solution

The fourth proportional to 272,474.92, 376,011.78 and 153,242.92 is: 211,473.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,474.92 : 376,011.78 = 153,242.92 : x
  2. Step 2: Convert to fraction form
    272,474.92/376,011.78 = 153,242.92/x
  3. Step 3: Cross multiply
    272,474.92x = 376,011.78 × 153,242.92
  4. Step 4: Simplify right side
    272,474.92x = 57,621,143,121.60
  5. Step 5: Solve for x
    x = 57,621,143,121.60/272,474.92
  6. Step 6: Final answer
    x = 211,473.20

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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.