Home / 389,365.35-537,323.18-217,281.48

Finding the Fourth Proportional to 389,365.35, 537,323.18 and 217,281.48

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Solution

The fourth proportional to 389,365.35, 537,323.18 and 217,281.48 is: 299,847.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,365.35 : 537,323.18 = 217,281.48 : x
  2. Step 2: Convert to fraction form
    389,365.35/537,323.18 = 217,281.48/x
  3. Step 3: Cross multiply
    389,365.35x = 537,323.18 × 217,281.48
  4. Step 4: Simplify right side
    389,365.35x = 116,750,375,788.71
  5. Step 5: Solve for x
    x = 116,750,375,788.71/389,365.35
  6. Step 6: Final answer
    x = 299,847.88

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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.