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Finding the Fourth Proportional to 298,285.15, 447,497.80 and 98,605.52

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Solution

The fourth proportional to 298,285.15, 447,497.80 and 98,605.52 is: 147,931.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,285.15 : 447,497.80 = 98,605.52 : x
  2. Step 2: Convert to fraction form
    298,285.15/447,497.80 = 98,605.52/x
  3. Step 3: Cross multiply
    298,285.15x = 447,497.80 × 98,605.52
  4. Step 4: Simplify right side
    298,285.15x = 44,125,752,461.97
  5. Step 5: Solve for x
    x = 44,125,752,461.97/298,285.15
  6. Step 6: Final answer
    x = 147,931.44

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1.5x scale

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.