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Finding the Fourth Proportional to 239,955.84, 331,058.88 and 155,180.16

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Solution

The fourth proportional to 239,955.84, 331,058.88 and 155,180.16 is: 214,096.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,955.84 : 331,058.88 = 155,180.16 : x
  2. Step 2: Convert to fraction form
    239,955.84/331,058.88 = 155,180.16/x
  3. Step 3: Cross multiply
    239,955.84x = 331,058.88 × 155,180.16
  4. Step 4: Simplify right side
    239,955.84x = 51,373,769,967.82
  5. Step 5: Solve for x
    x = 51,373,769,967.82/239,955.84
  6. Step 6: Final answer
    x = 214,096.77

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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.