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Finding the Fourth Proportional to 207,040.40, 310,560.60 and 181,379.60

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Solution

The fourth proportional to 207,040.40, 310,560.60 and 181,379.60 is: 272,069.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,040.40 : 310,560.60 = 181,379.60 : x
  2. Step 2: Convert to fraction form
    207,040.40/310,560.60 = 181,379.60/x
  3. Step 3: Cross multiply
    207,040.40x = 310,560.60 × 181,379.60
  4. Step 4: Simplify right side
    207,040.40x = 56,329,357,403.76
  5. Step 5: Solve for x
    x = 56,329,357,403.76/207,040.40
  6. Step 6: Final answer
    x = 272,069.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.