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Finding the Fourth Proportional to 306,303.81, 459,155.75 and 171,433.74

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Solution

The fourth proportional to 306,303.81, 459,155.75 and 171,433.74 is: 256,982.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,303.81 : 459,155.75 = 171,433.74 : x
  2. Step 2: Convert to fraction form
    306,303.81/459,155.75 = 171,433.74/x
  3. Step 3: Cross multiply
    306,303.81x = 459,155.75 × 171,433.74
  4. Step 4: Simplify right side
    306,303.81x = 78,714,786,607.84
  5. Step 5: Solve for x
    x = 78,714,786,607.84/306,303.81
  6. Step 6: Final answer
    x = 256,982.72

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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.