Home / 212,911.45-319,500.14-141,883.93

Finding the Fourth Proportional to 212,911.45, 319,500.14 and 141,883.93

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Solution

The fourth proportional to 212,911.45, 319,500.14 and 141,883.93 is: 212,914.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,911.45 : 319,500.14 = 141,883.93 : x
  2. Step 2: Convert to fraction form
    212,911.45/319,500.14 = 141,883.93/x
  3. Step 3: Cross multiply
    212,911.45x = 319,500.14 × 141,883.93
  4. Step 4: Simplify right side
    212,911.45x = 45,331,935,498.75
  5. Step 5: Solve for x
    x = 45,331,935,498.75/212,911.45
  6. Step 6: Final answer
    x = 212,914.50

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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.