Home / 306,440.94-459,659.88-78,736.35

Finding the Fourth Proportional to 306,440.94, 459,659.88 and 78,736.35

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Solution

The fourth proportional to 306,440.94, 459,659.88 and 78,736.35 is: 118,104.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,440.94 : 459,659.88 = 78,736.35 : x
  2. Step 2: Convert to fraction form
    306,440.94/459,659.88 = 78,736.35/x
  3. Step 3: Cross multiply
    306,440.94x = 459,659.88 × 78,736.35
  4. Step 4: Simplify right side
    306,440.94x = 36,191,941,192.64
  5. Step 5: Solve for x
    x = 36,191,941,192.64/306,440.94
  6. Step 6: Final answer
    x = 118,104.13

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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.