Home / 389,043.21-536,868.93-216,966.41

Finding the Fourth Proportional to 389,043.21, 536,868.93 and 216,966.41

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Solution

The fourth proportional to 389,043.21, 536,868.93 and 216,966.41 is: 299,407.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,043.21 : 536,868.93 = 216,966.41 : x
  2. Step 2: Convert to fraction form
    389,043.21/536,868.93 = 216,966.41/x
  3. Step 3: Cross multiply
    389,043.21x = 536,868.93 × 216,966.41
  4. Step 4: Simplify right side
    389,043.21x = 116,482,524,382.64
  5. Step 5: Solve for x
    x = 116,482,524,382.64/389,043.21
  6. Step 6: Final answer
    x = 299,407.68

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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.