Home / 272,929.89-409,457.15-83,417.22

Finding the Fourth Proportional to 272,929.89, 409,457.15 and 83,417.22

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Solution

The fourth proportional to 272,929.89, 409,457.15 and 83,417.22 is: 125,144.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,929.89 : 409,457.15 = 83,417.22 : x
  2. Step 2: Convert to fraction form
    272,929.89/409,457.15 = 83,417.22/x
  3. Step 3: Cross multiply
    272,929.89x = 409,457.15 × 83,417.22
  4. Step 4: Simplify right side
    272,929.89x = 34,155,776,745.04
  5. Step 5: Solve for x
    x = 34,155,776,745.04/272,929.89
  6. Step 6: Final answer
    x = 125,144.87

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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.