Home / 638,676.54-958,088.93-212,250.42

Finding the Fourth Proportional to 638,676.54, 958,088.93 and 212,250.42

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Solution

The fourth proportional to 638,676.54, 958,088.93 and 212,250.42 is: 318,400.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,676.54 : 958,088.93 = 212,250.42 : x
  2. Step 2: Convert to fraction form
    638,676.54/958,088.93 = 212,250.42/x
  3. Step 3: Cross multiply
    638,676.54x = 958,088.93 × 212,250.42
  4. Step 4: Simplify right side
    638,676.54x = 203,354,776,728.60
  5. Step 5: Solve for x
    x = 203,354,776,728.60/638,676.54
  6. Step 6: Final answer
    x = 318,400.26

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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.