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Finding the Fourth Proportional to 268,950.96, 403,470.18 and 79,430.48

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Solution

The fourth proportional to 268,950.96, 403,470.18 and 79,430.48 is: 119,158.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,950.96 : 403,470.18 = 79,430.48 : x
  2. Step 2: Convert to fraction form
    268,950.96/403,470.18 = 79,430.48/x
  3. Step 3: Cross multiply
    268,950.96x = 403,470.18 × 79,430.48
  4. Step 4: Simplify right side
    268,950.96x = 32,047,830,063.09
  5. Step 5: Solve for x
    x = 32,047,830,063.09/268,950.96
  6. Step 6: Final answer
    x = 119,158.64

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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.