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Finding the Fourth Proportional to 245,151.69, 367,516.90 and 85,206.84

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Solution

The fourth proportional to 245,151.69, 367,516.90 and 85,206.84 is: 127,737.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,151.69 : 367,516.90 = 85,206.84 : x
  2. Step 2: Convert to fraction form
    245,151.69/367,516.90 = 85,206.84/x
  3. Step 3: Cross multiply
    245,151.69x = 367,516.90 × 85,206.84
  4. Step 4: Simplify right side
    245,151.69x = 31,314,953,269.56
  5. Step 5: Solve for x
    x = 31,314,953,269.56/245,151.69
  6. Step 6: Final answer
    x = 127,737.05

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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.