Home / 225,545.40-311,253.84-127,429.08

Finding the Fourth Proportional to 225,545.40, 311,253.84 and 127,429.08

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Solution

The fourth proportional to 225,545.40, 311,253.84 and 127,429.08 is: 175,852.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,545.40 : 311,253.84 = 127,429.08 : x
  2. Step 2: Convert to fraction form
    225,545.40/311,253.84 = 127,429.08/x
  3. Step 3: Cross multiply
    225,545.40x = 311,253.84 × 127,429.08
  4. Step 4: Simplify right side
    225,545.40x = 39,662,790,477.67
  5. Step 5: Solve for x
    x = 39,662,790,477.67/225,545.40
  6. Step 6: Final answer
    x = 175,852.80

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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.