Home / 389,247.32-537,165.17-217,163.84

Finding the Fourth Proportional to 389,247.32, 537,165.17 and 217,163.84

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Solution

The fourth proportional to 389,247.32, 537,165.17 and 217,163.84 is: 299,688.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,247.32 : 537,165.17 = 217,163.84 : x
  2. Step 2: Convert to fraction form
    389,247.32/537,165.17 = 217,163.84/x
  3. Step 3: Cross multiply
    389,247.32x = 537,165.17 × 217,163.84
  4. Step 4: Simplify right side
    389,247.32x = 116,652,848,074.17
  5. Step 5: Solve for x
    x = 116,652,848,074.17/389,247.32
  6. Step 6: Final answer
    x = 299,688.25

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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.