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Finding the Fourth Proportional to 437,052.83, 655,406.91 and 212,346.68

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Solution

The fourth proportional to 437,052.83, 655,406.91 and 212,346.68 is: 318,436.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,052.83 : 655,406.91 = 212,346.68 : x
  2. Step 2: Convert to fraction form
    437,052.83/655,406.91 = 212,346.68/x
  3. Step 3: Cross multiply
    437,052.83x = 655,406.91 × 212,346.68
  4. Step 4: Simplify right side
    437,052.83x = 139,173,478,110.52
  5. Step 5: Solve for x
    x = 139,173,478,110.52/437,052.83
  6. Step 6: Final answer
    x = 318,436.29

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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.