Home / 225,848.79-311,666.67-139,784.94

Finding the Fourth Proportional to 225,848.79, 311,666.67 and 139,784.94

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Solution

The fourth proportional to 225,848.79, 311,666.67 and 139,784.94 is: 192,900.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,848.79 : 311,666.67 = 139,784.94 : x
  2. Step 2: Convert to fraction form
    225,848.79/311,666.67 = 139,784.94/x
  3. Step 3: Cross multiply
    225,848.79x = 311,666.67 × 139,784.94
  4. Step 4: Simplify right side
    225,848.79x = 43,566,306,765.95
  5. Step 5: Solve for x
    x = 43,566,306,765.95/225,848.79
  6. Step 6: Final answer
    x = 192,900.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.