Home / 385,234.08-531,626.40-215,484

Finding the Fourth Proportional to 385,234.08, 531,626.40 and 215,484

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Solution

The fourth proportional to 385,234.08, 531,626.40 and 215,484 is: 297,369.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,234.08 : 531,626.40 = 215,484 : x
  2. Step 2: Convert to fraction form
    385,234.08/531,626.40 = 215,484/x
  3. Step 3: Cross multiply
    385,234.08x = 531,626.40 × 215,484
  4. Step 4: Simplify right side
    385,234.08x = 114,556,983,177.60
  5. Step 5: Solve for x
    x = 114,556,983,177.60/385,234.08
  6. Step 6: Final answer
    x = 297,369.80

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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.