Home / 347,972.24-521,958.40-85,316.24

Finding the Fourth Proportional to 347,972.24, 521,958.40 and 85,316.24

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Solution

The fourth proportional to 347,972.24, 521,958.40 and 85,316.24 is: 127,974.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,972.24 : 521,958.40 = 85,316.24 : x
  2. Step 2: Convert to fraction form
    347,972.24/521,958.40 = 85,316.24/x
  3. Step 3: Cross multiply
    347,972.24x = 521,958.40 × 85,316.24
  4. Step 4: Simplify right side
    347,972.24x = 44,531,528,124.42
  5. Step 5: Solve for x
    x = 44,531,528,124.42/347,972.24
  6. Step 6: Final answer
    x = 127,974.37

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1.5x scale

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.