Home / 279,317.06-385,457.64-151,989.92

Finding the Fourth Proportional to 279,317.06, 385,457.64 and 151,989.92

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Solution

The fourth proportional to 279,317.06, 385,457.64 and 151,989.92 is: 209,746.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,317.06 : 385,457.64 = 151,989.92 : x
  2. Step 2: Convert to fraction form
    279,317.06/385,457.64 = 151,989.92/x
  3. Step 3: Cross multiply
    279,317.06x = 385,457.64 × 151,989.92
  4. Step 4: Simplify right side
    279,317.06x = 58,585,675,866.99
  5. Step 5: Solve for x
    x = 58,585,675,866.99/279,317.06
  6. Step 6: Final answer
    x = 209,746.14

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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.