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Finding the Fourth Proportional to 255,634.40, 383,014.20 and 162,030.80

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Solution

The fourth proportional to 255,634.40, 383,014.20 and 162,030.80 is: 242,768.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,634.40 : 383,014.20 = 162,030.80 : x
  2. Step 2: Convert to fraction form
    255,634.40/383,014.20 = 162,030.80/x
  3. Step 3: Cross multiply
    255,634.40x = 383,014.20 × 162,030.80
  4. Step 4: Simplify right side
    255,634.40x = 62,060,097,237.36
  5. Step 5: Solve for x
    x = 62,060,097,237.36/255,634.40
  6. Step 6: Final answer
    x = 242,768.96

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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.