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Finding the Fourth Proportional to 280,952.95, 387,383.78 and 227,071.34

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Solution

The fourth proportional to 280,952.95, 387,383.78 and 227,071.34 is: 313,090.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,952.95 : 387,383.78 = 227,071.34 : x
  2. Step 2: Convert to fraction form
    280,952.95/387,383.78 = 227,071.34/x
  3. Step 3: Cross multiply
    280,952.95x = 387,383.78 × 227,071.34
  4. Step 4: Simplify right side
    280,952.95x = 87,963,754,018.87
  5. Step 5: Solve for x
    x = 87,963,754,018.87/280,952.95
  6. Step 6: Final answer
    x = 313,090.70

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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.