Home / 385,152.48-531,514.44-215,395.92

Finding the Fourth Proportional to 385,152.48, 531,514.44 and 215,395.92

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Solution

The fourth proportional to 385,152.48, 531,514.44 and 215,395.92 is: 297,248.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,152.48 : 531,514.44 = 215,395.92 : x
  2. Step 2: Convert to fraction form
    385,152.48/531,514.44 = 215,395.92/x
  3. Step 3: Cross multiply
    385,152.48x = 531,514.44 × 215,395.92
  4. Step 4: Simplify right side
    385,152.48x = 114,486,041,797.09
  5. Step 5: Solve for x
    x = 114,486,041,797.09/385,152.48
  6. Step 6: Final answer
    x = 297,248.62

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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.