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Finding the Fourth Proportional to 455,951.60, 683,927.40 and 140,505.20

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Solution

The fourth proportional to 455,951.60, 683,927.40 and 140,505.20 is: 210,757.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,951.60 : 683,927.40 = 140,505.20 : x
  2. Step 2: Convert to fraction form
    455,951.60/683,927.40 = 140,505.20/x
  3. Step 3: Cross multiply
    455,951.60x = 683,927.40 × 140,505.20
  4. Step 4: Simplify right side
    455,951.60x = 96,095,356,122.48
  5. Step 5: Solve for x
    x = 96,095,356,122.48/455,951.60
  6. Step 6: Final answer
    x = 210,757.80

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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.