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Finding the Fourth Proportional to 207,365.40, 310,464.90 and 186,370.20

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Solution

The fourth proportional to 207,365.40, 310,464.90 and 186,370.20 is: 279,031.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,365.40 : 310,464.90 = 186,370.20 : x
  2. Step 2: Convert to fraction form
    207,365.40/310,464.90 = 186,370.20/x
  3. Step 3: Cross multiply
    207,365.40x = 310,464.90 × 186,370.20
  4. Step 4: Simplify right side
    207,365.40x = 57,861,405,505.98
  5. Step 5: Solve for x
    x = 57,861,405,505.98/207,365.40
  6. Step 6: Final answer
    x = 279,031.15

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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.