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Finding the Fourth Proportional to 225,603.32, 311,216.12 and 152,981.66

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Solution

The fourth proportional to 225,603.32, 311,216.12 and 152,981.66 is: 211,035.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,603.32 : 311,216.12 = 152,981.66 : x
  2. Step 2: Convert to fraction form
    225,603.32/311,216.12 = 152,981.66/x
  3. Step 3: Cross multiply
    225,603.32x = 311,216.12 × 152,981.66
  4. Step 4: Simplify right side
    225,603.32x = 47,610,357,100.28
  5. Step 5: Solve for x
    x = 47,610,357,100.28/225,603.32
  6. Step 6: Final answer
    x = 211,035.71

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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.