Home / 352,844.80-528,748.80-142,115.20

Finding the Fourth Proportional to 352,844.80, 528,748.80 and 142,115.20

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Solution

The fourth proportional to 352,844.80, 528,748.80 and 142,115.20 is: 212,964.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,844.80 : 528,748.80 = 142,115.20 : x
  2. Step 2: Convert to fraction form
    352,844.80/528,748.80 = 142,115.20/x
  3. Step 3: Cross multiply
    352,844.80x = 528,748.80 × 142,115.20
  4. Step 4: Simplify right side
    352,844.80x = 75,143,241,461.76
  5. Step 5: Solve for x
    x = 75,143,241,461.76/352,844.80
  6. Step 6: Final answer
    x = 212,964.00

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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.