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Finding the Fourth Proportional to 256,039.20, 384,058.80 and 237,376.80

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Solution

The fourth proportional to 256,039.20, 384,058.80 and 237,376.80 is: 356,065.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,039.20 : 384,058.80 = 237,376.80 : x
  2. Step 2: Convert to fraction form
    256,039.20/384,058.80 = 237,376.80/x
  3. Step 3: Cross multiply
    256,039.20x = 384,058.80 × 237,376.80
  4. Step 4: Simplify right side
    256,039.20x = 91,166,648,955.84
  5. Step 5: Solve for x
    x = 91,166,648,955.84/256,039.20
  6. Step 6: Final answer
    x = 356,065.20

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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.