Home / 225,518.09-311,215.10-123,547.26

Finding the Fourth Proportional to 225,518.09, 311,215.10 and 123,547.26

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Solution

The fourth proportional to 225,518.09, 311,215.10 and 123,547.26 is: 170,495.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,518.09 : 311,215.10 = 123,547.26 : x
  2. Step 2: Convert to fraction form
    225,518.09/311,215.10 = 123,547.26/x
  3. Step 3: Cross multiply
    225,518.09x = 311,215.10 × 123,547.26
  4. Step 4: Simplify right side
    225,518.09x = 38,449,772,257.89
  5. Step 5: Solve for x
    x = 38,449,772,257.89/225,518.09
  6. Step 6: Final answer
    x = 170,495.29

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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.