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Finding the Fourth Proportional to 361,970.20, 542,955.30 and 303,358.60

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Solution

The fourth proportional to 361,970.20, 542,955.30 and 303,358.60 is: 455,037.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,970.20 : 542,955.30 = 303,358.60 : x
  2. Step 2: Convert to fraction form
    361,970.20/542,955.30 = 303,358.60/x
  3. Step 3: Cross multiply
    361,970.20x = 542,955.30 × 303,358.60
  4. Step 4: Simplify right side
    361,970.20x = 164,710,159,670.58
  5. Step 5: Solve for x
    x = 164,710,159,670.58/361,970.20
  6. Step 6: Final answer
    x = 455,037.90

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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.