Home / 353,306.10-528,749.55-213,165.30

Finding the Fourth Proportional to 353,306.10, 528,749.55 and 213,165.30

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Solution

The fourth proportional to 353,306.10, 528,749.55 and 213,165.30 is: 319,018.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,306.10 : 528,749.55 = 213,165.30 : x
  2. Step 2: Convert to fraction form
    353,306.10/528,749.55 = 213,165.30/x
  3. Step 3: Cross multiply
    353,306.10x = 528,749.55 × 213,165.30
  4. Step 4: Simplify right side
    353,306.10x = 112,711,056,450.62
  5. Step 5: Solve for x
    x = 112,711,056,450.62/353,306.10
  6. Step 6: Final answer
    x = 319,018.14

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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.