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Finding the Fourth Proportional to 202,457.88, 279,717.30 and 172,559.16

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Solution

The fourth proportional to 202,457.88, 279,717.30 and 172,559.16 is: 238,409.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,457.88 : 279,717.30 = 172,559.16 : x
  2. Step 2: Convert to fraction form
    202,457.88/279,717.30 = 172,559.16/x
  3. Step 3: Cross multiply
    202,457.88x = 279,717.30 × 172,559.16
  4. Step 4: Simplify right side
    202,457.88x = 48,267,782,325.47
  5. Step 5: Solve for x
    x = 48,267,782,325.47/202,457.88
  6. Step 6: Final answer
    x = 238,409.01

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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.