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Finding the Fourth Proportional to 285,636.12, 425,900.50 and 277,789.08

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Solution

The fourth proportional to 285,636.12, 425,900.50 and 277,789.08 is: 414,200.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,636.12 : 425,900.50 = 277,789.08 : x
  2. Step 2: Convert to fraction form
    285,636.12/425,900.50 = 277,789.08/x
  3. Step 3: Cross multiply
    285,636.12x = 425,900.50 × 277,789.08
  4. Step 4: Simplify right side
    285,636.12x = 118,310,508,066.54
  5. Step 5: Solve for x
    x = 118,310,508,066.54/285,636.12
  6. Step 6: Final answer
    x = 414,200.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.