Home / 312,140.36-468,285.06-101,778.50

Finding the Fourth Proportional to 312,140.36, 468,285.06 and 101,778.50

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Solution

The fourth proportional to 312,140.36, 468,285.06 and 101,778.50 is: 152,692.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,140.36 : 468,285.06 = 101,778.50 : x
  2. Step 2: Convert to fraction form
    312,140.36/468,285.06 = 101,778.50/x
  3. Step 3: Cross multiply
    312,140.36x = 468,285.06 × 101,778.50
  4. Step 4: Simplify right side
    312,140.36x = 47,661,350,979.21
  5. Step 5: Solve for x
    x = 47,661,350,979.21/312,140.36
  6. Step 6: Final answer
    x = 152,692.05

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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.