Home / 209,490.12-314,284.38-69,248.74

Finding the Fourth Proportional to 209,490.12, 314,284.38 and 69,248.74

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Solution

The fourth proportional to 209,490.12, 314,284.38 and 69,248.74 is: 103,889.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,490.12 : 314,284.38 = 69,248.74 : x
  2. Step 2: Convert to fraction form
    209,490.12/314,284.38 = 69,248.74/x
  3. Step 3: Cross multiply
    209,490.12x = 314,284.38 × 69,248.74
  4. Step 4: Simplify right side
    209,490.12x = 21,763,797,316.68
  5. Step 5: Solve for x
    x = 21,763,797,316.68/209,490.12
  6. Step 6: Final answer
    x = 103,889.37

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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.