Home / 385,320.78-531,849.51-224,207.01

Finding the Fourth Proportional to 385,320.78, 531,849.51 and 224,207.01

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Solution

The fourth proportional to 385,320.78, 531,849.51 and 224,207.01 is: 309,467.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,320.78 : 531,849.51 = 224,207.01 : x
  2. Step 2: Convert to fraction form
    385,320.78/531,849.51 = 224,207.01/x
  3. Step 3: Cross multiply
    385,320.78x = 531,849.51 × 224,207.01
  4. Step 4: Simplify right side
    385,320.78x = 119,244,388,407.07
  5. Step 5: Solve for x
    x = 119,244,388,407.07/385,320.78
  6. Step 6: Final answer
    x = 309,467.84

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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.