Home / 389,365.11-537,322.83-217,281.24

Finding the Fourth Proportional to 389,365.11, 537,322.83 and 217,281.24

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Solution

The fourth proportional to 389,365.11, 537,322.83 and 217,281.24 is: 299,847.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,365.11 : 537,322.83 = 217,281.24 : x
  2. Step 2: Convert to fraction form
    389,365.11/537,322.83 = 217,281.24/x
  3. Step 3: Cross multiply
    389,365.11x = 537,322.83 × 217,281.24
  4. Step 4: Simplify right side
    389,365.11x = 116,750,170,782.71
  5. Step 5: Solve for x
    x = 116,750,170,782.71/389,365.11
  6. Step 6: Final answer
    x = 299,847.54

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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.