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Finding the Fourth Proportional to 268,479.56, 370,492.31 and 147,620.00

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Solution

The fourth proportional to 268,479.56, 370,492.31 and 147,620.00 is: 203,710.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,479.56 : 370,492.31 = 147,620.00 : x
  2. Step 2: Convert to fraction form
    268,479.56/370,492.31 = 147,620.00/x
  3. Step 3: Cross multiply
    268,479.56x = 370,492.31 × 147,620.00
  4. Step 4: Simplify right side
    268,479.56x = 54,692,076,097.48
  5. Step 5: Solve for x
    x = 54,692,076,097.48/268,479.56
  6. Step 6: Final answer
    x = 203,710.39

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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.