Home / 353,291.10-529,245.45-212,631.90

Finding the Fourth Proportional to 353,291.10, 529,245.45 and 212,631.90

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Solution

The fourth proportional to 353,291.10, 529,245.45 and 212,631.90 is: 318,531.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,291.10 : 529,245.45 = 212,631.90 : x
  2. Step 2: Convert to fraction form
    353,291.10/529,245.45 = 212,631.90/x
  3. Step 3: Cross multiply
    353,291.10x = 529,245.45 × 212,631.90
  4. Step 4: Simplify right side
    353,291.10x = 112,534,465,599.86
  5. Step 5: Solve for x
    x = 112,534,465,599.86/353,291.10
  6. Step 6: Final answer
    x = 318,531.84

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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.