Home / 385,829.42-532,438.85-213,747.02

Finding the Fourth Proportional to 385,829.42, 532,438.85 and 213,747.02

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Solution

The fourth proportional to 385,829.42, 532,438.85 and 213,747.02 is: 294,967.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,829.42 : 532,438.85 = 213,747.02 : x
  2. Step 2: Convert to fraction form
    385,829.42/532,438.85 = 213,747.02/x
  3. Step 3: Cross multiply
    385,829.42x = 532,438.85 × 213,747.02
  4. Step 4: Simplify right side
    385,829.42x = 113,807,213,788.80
  5. Step 5: Solve for x
    x = 113,807,213,788.80/385,829.42
  6. Step 6: Final answer
    x = 294,967.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.