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Finding the Fourth Proportional to 309,314.64, 426,847.08 and 180,244.89

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Solution

The fourth proportional to 309,314.64, 426,847.08 and 180,244.89 is: 248,733.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,314.64 : 426,847.08 = 180,244.89 : x
  2. Step 2: Convert to fraction form
    309,314.64/426,847.08 = 180,244.89/x
  3. Step 3: Cross multiply
    309,314.64x = 426,847.08 × 180,244.89
  4. Step 4: Simplify right side
    309,314.64x = 76,937,004,981.42
  5. Step 5: Solve for x
    x = 76,937,004,981.42/309,314.64
  6. Step 6: Final answer
    x = 248,733.80

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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.