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Finding the Fourth Proportional to 225,688.08, 311,530.44 and 154,016.88

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Solution

The fourth proportional to 225,688.08, 311,530.44 and 154,016.88 is: 212,598.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,688.08 : 311,530.44 = 154,016.88 : x
  2. Step 2: Convert to fraction form
    225,688.08/311,530.44 = 154,016.88/x
  3. Step 3: Cross multiply
    225,688.08x = 311,530.44 × 154,016.88
  4. Step 4: Simplify right side
    225,688.08x = 47,980,946,393.83
  5. Step 5: Solve for x
    x = 47,980,946,393.83/225,688.08
  6. Step 6: Final answer
    x = 212,598.50

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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.