Home / 345,148.08-517,507.68-145,365.60

Finding the Fourth Proportional to 345,148.08, 517,507.68 and 145,365.60

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Solution

The fourth proportional to 345,148.08, 517,507.68 and 145,365.60 is: 217,958.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,148.08 : 517,507.68 = 145,365.60 : x
  2. Step 2: Convert to fraction form
    345,148.08/517,507.68 = 145,365.60/x
  3. Step 3: Cross multiply
    345,148.08x = 517,507.68 × 145,365.60
  4. Step 4: Simplify right side
    345,148.08x = 75,227,814,407.81
  5. Step 5: Solve for x
    x = 75,227,814,407.81/345,148.08
  6. Step 6: Final answer
    x = 217,958.08

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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.