Home / 389,377.82-537,307.26-217,282.79

Finding the Fourth Proportional to 389,377.82, 537,307.26 and 217,282.79

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Solution

The fourth proportional to 389,377.82, 537,307.26 and 217,282.79 is: 299,831.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,377.82 : 537,307.26 = 217,282.79 : x
  2. Step 2: Convert to fraction form
    389,377.82/537,307.26 = 217,282.79/x
  3. Step 3: Cross multiply
    389,377.82x = 537,307.26 × 217,282.79
  4. Step 4: Simplify right side
    389,377.82x = 116,747,617,853.52
  5. Step 5: Solve for x
    x = 116,747,617,853.52/389,377.82
  6. Step 6: Final answer
    x = 299,831.20

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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.