Home / 208,187.12-312,279.24-50,416.40

Finding the Fourth Proportional to 208,187.12, 312,279.24 and 50,416.40

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Solution

The fourth proportional to 208,187.12, 312,279.24 and 50,416.40 is: 75,624.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,187.12 : 312,279.24 = 50,416.40 : x
  2. Step 2: Convert to fraction form
    208,187.12/312,279.24 = 50,416.40/x
  3. Step 3: Cross multiply
    208,187.12x = 312,279.24 × 50,416.40
  4. Step 4: Simplify right side
    208,187.12x = 15,743,995,075.54
  5. Step 5: Solve for x
    x = 15,743,995,075.54/208,187.12
  6. Step 6: Final answer
    x = 75,624.25

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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.