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Finding the Fourth Proportional to 306,864.78, 458,226.76 and 250,817.64

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Solution

The fourth proportional to 306,864.78, 458,226.76 and 250,817.64 is: 374,534.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,864.78 : 458,226.76 = 250,817.64 : x
  2. Step 2: Convert to fraction form
    306,864.78/458,226.76 = 250,817.64/x
  3. Step 3: Cross multiply
    306,864.78x = 458,226.76 × 250,817.64
  4. Step 4: Simplify right side
    306,864.78x = 114,931,354,528.05
  5. Step 5: Solve for x
    x = 114,931,354,528.05/306,864.78
  6. Step 6: Final answer
    x = 374,534.20

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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.