Home / 385,837.23-532,459.12-213,758.86

Finding the Fourth Proportional to 385,837.23, 532,459.12 and 213,758.86

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Solution

The fourth proportional to 385,837.23, 532,459.12 and 213,758.86 is: 294,989.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,837.23 : 532,459.12 = 213,758.86 : x
  2. Step 2: Convert to fraction form
    385,837.23/532,459.12 = 213,758.86/x
  3. Step 3: Cross multiply
    385,837.23x = 532,459.12 × 213,758.86
  4. Step 4: Simplify right side
    385,837.23x = 113,817,854,021.42
  5. Step 5: Solve for x
    x = 113,817,854,021.42/385,837.23
  6. Step 6: Final answer
    x = 294,989.30

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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.