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Finding the Fourth Proportional to 268,374.36, 370,349.10 and 147,515.88

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Solution

The fourth proportional to 268,374.36, 370,349.10 and 147,515.88 is: 203,567.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,374.36 : 370,349.10 = 147,515.88 : x
  2. Step 2: Convert to fraction form
    268,374.36/370,349.10 = 147,515.88/x
  3. Step 3: Cross multiply
    268,374.36x = 370,349.10 × 147,515.88
  4. Step 4: Simplify right side
    268,374.36x = 54,632,373,393.71
  5. Step 5: Solve for x
    x = 54,632,373,393.71/268,374.36
  6. Step 6: Final answer
    x = 203,567.78

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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.