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Finding the Fourth Proportional to 207,115.40, 310,673.10 and 185,464.10

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Solution

The fourth proportional to 207,115.40, 310,673.10 and 185,464.10 is: 278,196.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,115.40 : 310,673.10 = 185,464.10 : x
  2. Step 2: Convert to fraction form
    207,115.40/310,673.10 = 185,464.10/x
  3. Step 3: Cross multiply
    207,115.40x = 310,673.10 × 185,464.10
  4. Step 4: Simplify right side
    207,115.40x = 57,618,706,885.71
  5. Step 5: Solve for x
    x = 57,618,706,885.71/207,115.40
  6. Step 6: Final answer
    x = 278,196.15

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Similar ratio
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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.