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Finding the Fourth Proportional to 348,223.50, 480,299.49 and 319,633.92

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Solution

The fourth proportional to 348,223.50, 480,299.49 and 319,633.92 is: 440,866.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,223.50 : 480,299.49 = 319,633.92 : x
  2. Step 2: Convert to fraction form
    348,223.50/480,299.49 = 319,633.92/x
  3. Step 3: Cross multiply
    348,223.50x = 480,299.49 × 319,633.92
  4. Step 4: Simplify right side
    348,223.50x = 153,520,008,762.70
  5. Step 5: Solve for x
    x = 153,520,008,762.70/348,223.50
  6. Step 6: Final answer
    x = 440,866.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.