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Finding the Fourth Proportional to 303,484.60, 455,183.70 and 103,814.20

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Solution

The fourth proportional to 303,484.60, 455,183.70 and 103,814.20 is: 155,706.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,484.60 : 455,183.70 = 103,814.20 : x
  2. Step 2: Convert to fraction form
    303,484.60/455,183.70 = 103,814.20/x
  3. Step 3: Cross multiply
    303,484.60x = 455,183.70 × 103,814.20
  4. Step 4: Simplify right side
    303,484.60x = 47,254,531,668.54
  5. Step 5: Solve for x
    x = 47,254,531,668.54/303,484.60
  6. Step 6: Final answer
    x = 155,706.52

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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.