Home / 389,172.64-537,067.75-217,089.34

Finding the Fourth Proportional to 389,172.64, 537,067.75 and 217,089.34

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Solution

The fourth proportional to 389,172.64, 537,067.75 and 217,089.34 is: 299,588.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,172.64 : 537,067.75 = 217,089.34 : x
  2. Step 2: Convert to fraction form
    389,172.64/537,067.75 = 217,089.34/x
  3. Step 3: Cross multiply
    389,172.64x = 537,067.75 × 217,089.34
  4. Step 4: Simplify right side
    389,172.64x = 116,591,683,382.79
  5. Step 5: Solve for x
    x = 116,591,683,382.79/389,172.64
  6. Step 6: Final answer
    x = 299,588.59

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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.