Home / 393,973.98-543,686.28-224,208.10

Finding the Fourth Proportional to 393,973.98, 543,686.28 and 224,208.10

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Solution

The fourth proportional to 393,973.98, 543,686.28 and 224,208.10 is: 309,408.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,973.98 : 543,686.28 = 224,208.10 : x
  2. Step 2: Convert to fraction form
    393,973.98/543,686.28 = 224,208.10/x
  3. Step 3: Cross multiply
    393,973.98x = 543,686.28 × 224,208.10
  4. Step 4: Simplify right side
    393,973.98x = 121,898,867,673.70
  5. Step 5: Solve for x
    x = 121,898,867,673.70/393,973.98
  6. Step 6: Final answer
    x = 309,408.43

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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.