Home / 389,011.13-536,844.86-216,927.42

Finding the Fourth Proportional to 389,011.13, 536,844.86 and 216,927.42

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Solution

The fourth proportional to 389,011.13, 536,844.86 and 216,927.42 is: 299,365.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,011.13 : 536,844.86 = 216,927.42 : x
  2. Step 2: Convert to fraction form
    389,011.13/536,844.86 = 216,927.42/x
  3. Step 3: Cross multiply
    389,011.13x = 536,844.86 × 216,927.42
  4. Step 4: Simplify right side
    389,011.13x = 116,456,369,335.42
  5. Step 5: Solve for x
    x = 116,456,369,335.42/389,011.13
  6. Step 6: Final answer
    x = 299,365.14

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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.