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Finding the Fourth Proportional to 245,364.60, 368,046.90 and 79,152.60

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Solution

The fourth proportional to 245,364.60, 368,046.90 and 79,152.60 is: 118,728.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,364.60 : 368,046.90 = 79,152.60 : x
  2. Step 2: Convert to fraction form
    245,364.60/368,046.90 = 79,152.60/x
  3. Step 3: Cross multiply
    245,364.60x = 368,046.90 × 79,152.60
  4. Step 4: Simplify right side
    245,364.60x = 29,131,869,056.94
  5. Step 5: Solve for x
    x = 29,131,869,056.94/245,364.60
  6. Step 6: Final answer
    x = 118,728.90

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1.5x scale

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.