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Finding the Fourth Proportional to 245,423.80, 368,135.70 and 170,774.20

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Solution

The fourth proportional to 245,423.80, 368,135.70 and 170,774.20 is: 256,161.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,423.80 : 368,135.70 = 170,774.20 : x
  2. Step 2: Convert to fraction form
    245,423.80/368,135.70 = 170,774.20/x
  3. Step 3: Cross multiply
    245,423.80x = 368,135.70 × 170,774.20
  4. Step 4: Simplify right side
    245,423.80x = 62,868,079,658.94
  5. Step 5: Solve for x
    x = 62,868,079,658.94/245,423.80
  6. Step 6: Final answer
    x = 256,161.30

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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.