Home / 437,116.98-655,509.33-209,178.60

Finding the Fourth Proportional to 437,116.98, 655,509.33 and 209,178.60

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Solution

The fourth proportional to 437,116.98, 655,509.33 and 209,178.60 is: 313,688.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,116.98 : 655,509.33 = 209,178.60 : x
  2. Step 2: Convert to fraction form
    437,116.98/655,509.33 = 209,178.60/x
  3. Step 3: Cross multiply
    437,116.98x = 655,509.33 × 209,178.60
  4. Step 4: Simplify right side
    437,116.98x = 137,118,523,936.34
  5. Step 5: Solve for x
    x = 137,118,523,936.34/437,116.98
  6. Step 6: Final answer
    x = 313,688.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.