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Finding the Fourth Proportional to 187,207.20, 258,940.80 and 178,459.20

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Solution

The fourth proportional to 187,207.20, 258,940.80 and 178,459.20 is: 246,840.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,207.20 : 258,940.80 = 178,459.20 : x
  2. Step 2: Convert to fraction form
    187,207.20/258,940.80 = 178,459.20/x
  3. Step 3: Cross multiply
    187,207.20x = 258,940.80 × 178,459.20
  4. Step 4: Simplify right side
    187,207.20x = 46,210,368,015.36
  5. Step 5: Solve for x
    x = 46,210,368,015.36/187,207.20
  6. Step 6: Final answer
    x = 246,840.76

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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.