Home / 385,277.81-531,654.48-215,479.13

Finding the Fourth Proportional to 385,277.81, 531,654.48 and 215,479.13

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Solution

The fourth proportional to 385,277.81, 531,654.48 and 215,479.13 is: 297,345.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,277.81 : 531,654.48 = 215,479.13 : x
  2. Step 2: Convert to fraction form
    385,277.81/531,654.48 = 215,479.13/x
  3. Step 3: Cross multiply
    385,277.81x = 531,654.48 × 215,479.13
  4. Step 4: Simplify right side
    385,277.81x = 114,560,442,152.73
  5. Step 5: Solve for x
    x = 114,560,442,152.73/385,277.81
  6. Step 6: Final answer
    x = 297,345.03

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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.