Home / 389,449.45-537,444.35-217,383.85

Finding the Fourth Proportional to 389,449.45, 537,444.35 and 217,383.85

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Solution

The fourth proportional to 389,449.45, 537,444.35 and 217,383.85 is: 299,992.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,449.45 : 537,444.35 = 217,383.85 : x
  2. Step 2: Convert to fraction form
    389,449.45/537,444.35 = 217,383.85/x
  3. Step 3: Cross multiply
    389,449.45x = 537,444.35 × 217,383.85
  4. Step 4: Simplify right side
    389,449.45x = 116,831,721,963.75
  5. Step 5: Solve for x
    x = 116,831,721,963.75/389,449.45
  6. Step 6: Final answer
    x = 299,992.01

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1.5x scale

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.