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Finding the Fourth Proportional to 157,398.66, 218,322.54 and 151,724.34

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Solution

The fourth proportional to 157,398.66, 218,322.54 and 151,724.34 is: 210,451.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,398.66 : 218,322.54 = 151,724.34 : x
  2. Step 2: Convert to fraction form
    157,398.66/218,322.54 = 151,724.34/x
  3. Step 3: Cross multiply
    157,398.66x = 218,322.54 × 151,724.34
  4. Step 4: Simplify right side
    157,398.66x = 33,124,843,288.62
  5. Step 5: Solve for x
    x = 33,124,843,288.62/157,398.66
  6. Step 6: Final answer
    x = 210,451.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.