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Finding the Fourth Proportional to 306,552.60, 459,360.45 and 128,962.26

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Solution

The fourth proportional to 306,552.60, 459,360.45 and 128,962.26 is: 193,246.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,552.60 : 459,360.45 = 128,962.26 : x
  2. Step 2: Convert to fraction form
    306,552.60/459,360.45 = 128,962.26/x
  3. Step 3: Cross multiply
    306,552.60x = 459,360.45 × 128,962.26
  4. Step 4: Simplify right side
    306,552.60x = 59,240,161,786.62
  5. Step 5: Solve for x
    x = 59,240,161,786.62/306,552.60
  6. Step 6: Final answer
    x = 193,246.32

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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.