Home / 319,027.12-478,584.42-141,530.20

Finding the Fourth Proportional to 319,027.12, 478,584.42 and 141,530.20

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Solution

The fourth proportional to 319,027.12, 478,584.42 and 141,530.20 is: 212,314.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,027.12 : 478,584.42 = 141,530.20 : x
  2. Step 2: Convert to fraction form
    319,027.12/478,584.42 = 141,530.20/x
  3. Step 3: Cross multiply
    319,027.12x = 478,584.42 × 141,530.20
  4. Step 4: Simplify right side
    319,027.12x = 67,734,148,679.48
  5. Step 5: Solve for x
    x = 67,734,148,679.48/319,027.12
  6. Step 6: Final answer
    x = 212,314.70

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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.