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Finding the Fourth Proportional to 256,466.80, 385,356.30 and 227,598.40

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Solution

The fourth proportional to 256,466.80, 385,356.30 and 227,598.40 is: 341,979.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,466.80 : 385,356.30 = 227,598.40 : x
  2. Step 2: Convert to fraction form
    256,466.80/385,356.30 = 227,598.40/x
  3. Step 3: Cross multiply
    256,466.80x = 385,356.30 × 227,598.40
  4. Step 4: Simplify right side
    256,466.80x = 87,706,477,309.92
  5. Step 5: Solve for x
    x = 87,706,477,309.92/256,466.80
  6. Step 6: Final answer
    x = 341,979.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.