Home / 209,488.12-314,281.38-69,246.76

Finding the Fourth Proportional to 209,488.12, 314,281.38 and 69,246.76

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Solution

The fourth proportional to 209,488.12, 314,281.38 and 69,246.76 is: 103,886.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,488.12 : 314,281.38 = 69,246.76 : x
  2. Step 2: Convert to fraction form
    209,488.12/314,281.38 = 69,246.76/x
  3. Step 3: Cross multiply
    209,488.12x = 314,281.38 × 69,246.76
  4. Step 4: Simplify right side
    209,488.12x = 21,762,967,293.33
  5. Step 5: Solve for x
    x = 21,762,967,293.33/209,488.12
  6. Step 6: Final answer
    x = 103,886.40

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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.