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Finding the Fourth Proportional to 158,699.66, 218,732.81 and 151,225.58

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Solution

The fourth proportional to 158,699.66, 218,732.81 and 151,225.58 is: 208,431.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,699.66 : 218,732.81 = 151,225.58 : x
  2. Step 2: Convert to fraction form
    158,699.66/218,732.81 = 151,225.58/x
  3. Step 3: Cross multiply
    158,699.66x = 218,732.81 × 151,225.58
  4. Step 4: Simplify right side
    158,699.66x = 33,077,995,847.98
  5. Step 5: Solve for x
    x = 33,077,995,847.98/158,699.66
  6. Step 6: Final answer
    x = 208,431.43

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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.