Home / 272,865.51-409,342.01-115,117.20

Finding the Fourth Proportional to 272,865.51, 409,342.01 and 115,117.20

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Solution

The fourth proportional to 272,865.51, 409,342.01 and 115,117.20 is: 172,694.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,865.51 : 409,342.01 = 115,117.20 : x
  2. Step 2: Convert to fraction form
    272,865.51/409,342.01 = 115,117.20/x
  3. Step 3: Cross multiply
    272,865.51x = 409,342.01 × 115,117.20
  4. Step 4: Simplify right side
    272,865.51x = 47,122,305,457.99
  5. Step 5: Solve for x
    x = 47,122,305,457.99/272,865.51
  6. Step 6: Final answer
    x = 172,694.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.