Home / 389,109.16-536,967.96-227,929.66

Finding the Fourth Proportional to 389,109.16, 536,967.96 and 227,929.66

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Solution

The fourth proportional to 389,109.16, 536,967.96 and 227,929.66 is: 314,541.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,109.16 : 536,967.96 = 227,929.66 : x
  2. Step 2: Convert to fraction form
    389,109.16/536,967.96 = 227,929.66/x
  3. Step 3: Cross multiply
    389,109.16x = 536,967.96 × 227,929.66
  4. Step 4: Simplify right side
    389,109.16x = 122,390,924,553.69
  5. Step 5: Solve for x
    x = 122,390,924,553.69/389,109.16
  6. Step 6: Final answer
    x = 314,541.36

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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.