Home / 208,109.48-312,164.40-50,338.10

Finding the Fourth Proportional to 208,109.48, 312,164.40 and 50,338.10

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Solution

The fourth proportional to 208,109.48, 312,164.40 and 50,338.10 is: 75,507.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,109.48 : 312,164.40 = 50,338.10 : x
  2. Step 2: Convert to fraction form
    208,109.48/312,164.40 = 50,338.10/x
  3. Step 3: Cross multiply
    208,109.48x = 312,164.40 × 50,338.10
  4. Step 4: Simplify right side
    208,109.48x = 15,713,762,783.64
  5. Step 5: Solve for x
    x = 15,713,762,783.64/208,109.48
  6. Step 6: Final answer
    x = 75,507.19

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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.