Home / 437,401.83-655,153.33-212,289.18

Finding the Fourth Proportional to 437,401.83, 655,153.33 and 212,289.18

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Solution

The fourth proportional to 437,401.83, 655,153.33 and 212,289.18 is: 317,972.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,401.83 : 655,153.33 = 212,289.18 : x
  2. Step 2: Convert to fraction form
    437,401.83/655,153.33 = 212,289.18/x
  3. Step 3: Cross multiply
    437,401.83x = 655,153.33 × 212,289.18
  4. Step 4: Simplify right side
    437,401.83x = 139,081,963,199.97
  5. Step 5: Solve for x
    x = 139,081,963,199.97/437,401.83
  6. Step 6: Final answer
    x = 317,972.98

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1.5x scale

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.