Home / 293,241.72-438,043.13-212,639.84

Finding the Fourth Proportional to 293,241.72, 438,043.13 and 212,639.84

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Solution

The fourth proportional to 293,241.72, 438,043.13 and 212,639.84 is: 317,640.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,241.72 : 438,043.13 = 212,639.84 : x
  2. Step 2: Convert to fraction form
    293,241.72/438,043.13 = 212,639.84/x
  3. Step 3: Cross multiply
    293,241.72x = 438,043.13 × 212,639.84
  4. Step 4: Simplify right side
    293,241.72x = 93,145,421,076.30
  5. Step 5: Solve for x
    x = 93,145,421,076.30/293,241.72
  6. Step 6: Final answer
    x = 317,640.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.