Home / 638,852.15-958,070.91-212,273.42

Finding the Fourth Proportional to 638,852.15, 958,070.91 and 212,273.42

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Solution

The fourth proportional to 638,852.15, 958,070.91 and 212,273.42 is: 318,341.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,852.15 : 958,070.91 = 212,273.42 : x
  2. Step 2: Convert to fraction form
    638,852.15/958,070.91 = 212,273.42/x
  3. Step 3: Cross multiply
    638,852.15x = 958,070.91 × 212,273.42
  4. Step 4: Simplify right side
    638,852.15x = 203,372,986,771.44
  5. Step 5: Solve for x
    x = 203,372,986,771.44/638,852.15
  6. Step 6: Final answer
    x = 318,341.24

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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.