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Finding the Fourth Proportional to 330,809.06, 456,502.59 and 187,578.74

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Solution

The fourth proportional to 330,809.06, 456,502.59 and 187,578.74 is: 258,850.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,809.06 : 456,502.59 = 187,578.74 : x
  2. Step 2: Convert to fraction form
    330,809.06/456,502.59 = 187,578.74/x
  3. Step 3: Cross multiply
    330,809.06x = 456,502.59 × 187,578.74
  4. Step 4: Simplify right side
    330,809.06x = 85,630,180,638.94
  5. Step 5: Solve for x
    x = 85,630,180,638.94/330,809.06
  6. Step 6: Final answer
    x = 258,850.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.