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Finding the Fourth Proportional to 245,378.50, 368,154.15 and 120,806.98

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Solution

The fourth proportional to 245,378.50, 368,154.15 and 120,806.98 is: 181,253.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,378.50 : 368,154.15 = 120,806.98 : x
  2. Step 2: Convert to fraction form
    245,378.50/368,154.15 = 120,806.98/x
  3. Step 3: Cross multiply
    245,378.50x = 368,154.15 × 120,806.98
  4. Step 4: Simplify right side
    245,378.50x = 44,475,591,035.97
  5. Step 5: Solve for x
    x = 44,475,591,035.97/245,378.50
  6. Step 6: Final answer
    x = 181,253.01

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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.