Home / 225,547.40-311,256.60-127,431.08

Finding the Fourth Proportional to 225,547.40, 311,256.60 and 127,431.08

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Solution

The fourth proportional to 225,547.40, 311,256.60 and 127,431.08 is: 175,855.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,547.40 : 311,256.60 = 127,431.08 : x
  2. Step 2: Convert to fraction form
    225,547.40/311,256.60 = 127,431.08/x
  3. Step 3: Cross multiply
    225,547.40x = 311,256.60 × 127,431.08
  4. Step 4: Simplify right side
    225,547.40x = 39,663,764,695.13
  5. Step 5: Solve for x
    x = 39,663,764,695.13/225,547.40
  6. Step 6: Final answer
    x = 175,855.56

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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.