Home / 352,005.40-528,008.10-115,355.80

Finding the Fourth Proportional to 352,005.40, 528,008.10 and 115,355.80

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Solution

The fourth proportional to 352,005.40, 528,008.10 and 115,355.80 is: 173,033.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,005.40 : 528,008.10 = 115,355.80 : x
  2. Step 2: Convert to fraction form
    352,005.40/528,008.10 = 115,355.80/x
  3. Step 3: Cross multiply
    352,005.40x = 528,008.10 × 115,355.80
  4. Step 4: Simplify right side
    352,005.40x = 60,908,796,781.98
  5. Step 5: Solve for x
    x = 60,908,796,781.98/352,005.40
  6. Step 6: Final answer
    x = 173,033.70

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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.