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Finding the Fourth Proportional to 268,596.56, 402,827.85 and 79,019.19

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Solution

The fourth proportional to 268,596.56, 402,827.85 and 79,019.19 is: 118,509.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,596.56 : 402,827.85 = 79,019.19 : x
  2. Step 2: Convert to fraction form
    268,596.56/402,827.85 = 79,019.19/x
  3. Step 3: Cross multiply
    268,596.56x = 402,827.85 × 79,019.19
  4. Step 4: Simplify right side
    268,596.56x = 31,831,130,416.44
  5. Step 5: Solve for x
    x = 31,831,130,416.44/268,596.56
  6. Step 6: Final answer
    x = 118,509.08

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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.