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Finding the Fourth Proportional to 330,285.66, 455,795.10 and 194,324.74

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Solution

The fourth proportional to 330,285.66, 455,795.10 and 194,324.74 is: 268,168.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,285.66 : 455,795.10 = 194,324.74 : x
  2. Step 2: Convert to fraction form
    330,285.66/455,795.10 = 194,324.74/x
  3. Step 3: Cross multiply
    330,285.66x = 455,795.10 × 194,324.74
  4. Step 4: Simplify right side
    330,285.66x = 88,572,264,300.77
  5. Step 5: Solve for x
    x = 88,572,264,300.77/330,285.66
  6. Step 6: Final answer
    x = 268,168.66

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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.