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Finding the Fourth Proportional to 173,606.88, 239,802.48 and 128,376.48

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Solution

The fourth proportional to 173,606.88, 239,802.48 and 128,376.48 is: 177,325.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,606.88 : 239,802.48 = 128,376.48 : x
  2. Step 2: Convert to fraction form
    173,606.88/239,802.48 = 128,376.48/x
  3. Step 3: Cross multiply
    173,606.88x = 239,802.48 × 128,376.48
  4. Step 4: Simplify right side
    173,606.88x = 30,784,998,277.67
  5. Step 5: Solve for x
    x = 30,784,998,277.67/173,606.88
  6. Step 6: Final answer
    x = 177,325.91

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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.