Home / 389,108.16-536,966.58-227,928.66

Finding the Fourth Proportional to 389,108.16, 536,966.58 and 227,928.66

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Solution

The fourth proportional to 389,108.16, 536,966.58 and 227,928.66 is: 314,539.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,108.16 : 536,966.58 = 227,928.66 : x
  2. Step 2: Convert to fraction form
    389,108.16/536,966.58 = 227,928.66/x
  3. Step 3: Cross multiply
    389,108.16x = 536,966.58 × 227,928.66
  4. Step 4: Simplify right side
    389,108.16x = 122,390,073,044.18
  5. Step 5: Solve for x
    x = 122,390,073,044.18/389,108.16
  6. Step 6: Final answer
    x = 314,539.98

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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.