Home / 345,536.64-517,134.60-212,501.28

Finding the Fourth Proportional to 345,536.64, 517,134.60 and 212,501.28

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Solution

The fourth proportional to 345,536.64, 517,134.60 and 212,501.28 is: 318,032.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,536.64 : 517,134.60 = 212,501.28 : x
  2. Step 2: Convert to fraction form
    345,536.64/517,134.60 = 212,501.28/x
  3. Step 3: Cross multiply
    345,536.64x = 517,134.60 × 212,501.28
  4. Step 4: Simplify right side
    345,536.64x = 109,891,764,432.29
  5. Step 5: Solve for x
    x = 109,891,764,432.29/345,536.64
  6. Step 6: Final answer
    x = 318,032.16

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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.