Home / 352,022.30-528,070.36-99,300.78

Finding the Fourth Proportional to 352,022.30, 528,070.36 and 99,300.78

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Solution

The fourth proportional to 352,022.30, 528,070.36 and 99,300.78 is: 148,961.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,022.30 : 528,070.36 = 99,300.78 : x
  2. Step 2: Convert to fraction form
    352,022.30/528,070.36 = 99,300.78/x
  3. Step 3: Cross multiply
    352,022.30x = 528,070.36 × 99,300.78
  4. Step 4: Simplify right side
    352,022.30x = 52,437,798,642.88
  5. Step 5: Solve for x
    x = 52,437,798,642.88/352,022.30
  6. Step 6: Final answer
    x = 148,961.58

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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.