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Finding the Fourth Proportional to 253,763.02, 350,207.64 and 139,041.88

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Solution

The fourth proportional to 253,763.02, 350,207.64 and 139,041.88 is: 191,885.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,763.02 : 350,207.64 = 139,041.88 : x
  2. Step 2: Convert to fraction form
    253,763.02/350,207.64 = 139,041.88/x
  3. Step 3: Cross multiply
    253,763.02x = 350,207.64 × 139,041.88
  4. Step 4: Simplify right side
    253,763.02x = 48,693,528,655.96
  5. Step 5: Solve for x
    x = 48,693,528,655.96/253,763.02
  6. Step 6: Final answer
    x = 191,885.83

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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.