Home / 352,038.20-528,057.30-115,323.80

Finding the Fourth Proportional to 352,038.20, 528,057.30 and 115,323.80

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Solution

The fourth proportional to 352,038.20, 528,057.30 and 115,323.80 is: 172,985.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,038.20 : 528,057.30 = 115,323.80 : x
  2. Step 2: Convert to fraction form
    352,038.20/528,057.30 = 115,323.80/x
  3. Step 3: Cross multiply
    352,038.20x = 528,057.30 × 115,323.80
  4. Step 4: Simplify right side
    352,038.20x = 60,897,574,453.74
  5. Step 5: Solve for x
    x = 60,897,574,453.74/352,038.20
  6. Step 6: Final answer
    x = 172,985.70

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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.