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Finding the Fourth Proportional to 245,623.20, 368,434.80 and 133,648.80

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Solution

The fourth proportional to 245,623.20, 368,434.80 and 133,648.80 is: 200,473.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,623.20 : 368,434.80 = 133,648.80 : x
  2. Step 2: Convert to fraction form
    245,623.20/368,434.80 = 133,648.80/x
  3. Step 3: Cross multiply
    245,623.20x = 368,434.80 × 133,648.80
  4. Step 4: Simplify right side
    245,623.20x = 49,240,868,898.24
  5. Step 5: Solve for x
    x = 49,240,868,898.24/245,623.20
  6. Step 6: Final answer
    x = 200,473.20

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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.