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Finding the Fourth Proportional to 306,560.15, 423,089.84 and 185,697.89

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Solution

The fourth proportional to 306,560.15, 423,089.84 and 185,697.89 is: 256,285.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,560.15 : 423,089.84 = 185,697.89 : x
  2. Step 2: Convert to fraction form
    306,560.15/423,089.84 = 185,697.89/x
  3. Step 3: Cross multiply
    306,560.15x = 423,089.84 × 185,697.89
  4. Step 4: Simplify right side
    306,560.15x = 78,566,890,568.44
  5. Step 5: Solve for x
    x = 78,566,890,568.44/306,560.15
  6. Step 6: Final answer
    x = 256,285.40

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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.