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Finding the Fourth Proportional to 353,552.79, 488,146.94 and 330,966.55

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Solution

The fourth proportional to 353,552.79, 488,146.94 and 330,966.55 is: 456,962.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,552.79 : 488,146.94 = 330,966.55 : x
  2. Step 2: Convert to fraction form
    353,552.79/488,146.94 = 330,966.55/x
  3. Step 3: Cross multiply
    353,552.79x = 488,146.94 × 330,966.55
  4. Step 4: Simplify right side
    353,552.79x = 161,560,308,624.86
  5. Step 5: Solve for x
    x = 161,560,308,624.86/353,552.79
  6. Step 6: Final answer
    x = 456,962.34

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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.