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Finding the Fourth Proportional to 309,099.60, 463,649.40 and 151,246.80

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Solution

The fourth proportional to 309,099.60, 463,649.40 and 151,246.80 is: 226,870.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,099.60 : 463,649.40 = 151,246.80 : x
  2. Step 2: Convert to fraction form
    309,099.60/463,649.40 = 151,246.80/x
  3. Step 3: Cross multiply
    309,099.60x = 463,649.40 × 151,246.80
  4. Step 4: Simplify right side
    309,099.60x = 70,125,488,071.92
  5. Step 5: Solve for x
    x = 70,125,488,071.92/309,099.60
  6. Step 6: Final answer
    x = 226,870.20

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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.