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Finding the Fourth Proportional to 339,956.64, 510,106.32 and 240,754.40

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Solution

The fourth proportional to 339,956.64, 510,106.32 and 240,754.40 is: 361,252.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,956.64 : 510,106.32 = 240,754.40 : x
  2. Step 2: Convert to fraction form
    339,956.64/510,106.32 = 240,754.40/x
  3. Step 3: Cross multiply
    339,956.64x = 510,106.32 × 240,754.40
  4. Step 4: Simplify right side
    339,956.64x = 122,810,341,007.81
  5. Step 5: Solve for x
    x = 122,810,341,007.81/339,956.64
  6. Step 6: Final answer
    x = 361,252.96

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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.