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Finding the Fourth Proportional to 298,045.80, 447,068.70 and 245,514.60

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Solution

The fourth proportional to 298,045.80, 447,068.70 and 245,514.60 is: 368,271.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,045.80 : 447,068.70 = 245,514.60 : x
  2. Step 2: Convert to fraction form
    298,045.80/447,068.70 = 245,514.60/x
  3. Step 3: Cross multiply
    298,045.80x = 447,068.70 × 245,514.60
  4. Step 4: Simplify right side
    298,045.80x = 109,761,893,053.02
  5. Step 5: Solve for x
    x = 109,761,893,053.02/298,045.80
  6. Step 6: Final answer
    x = 368,271.90

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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.