Home / 354,343.16-531,540.66-143,985.08

Finding the Fourth Proportional to 354,343.16, 531,540.66 and 143,985.08

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Solution

The fourth proportional to 354,343.16, 531,540.66 and 143,985.08 is: 215,988.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,343.16 : 531,540.66 = 143,985.08 : x
  2. Step 2: Convert to fraction form
    354,343.16/531,540.66 = 143,985.08/x
  3. Step 3: Cross multiply
    354,343.16x = 531,540.66 × 143,985.08
  4. Step 4: Simplify right side
    354,343.16x = 76,533,924,453.35
  5. Step 5: Solve for x
    x = 76,533,924,453.35/354,343.16
  6. Step 6: Final answer
    x = 215,988.15

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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.