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Finding the Fourth Proportional to 339,782.84, 509,671.02 and 90,464.84

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Solution

The fourth proportional to 339,782.84, 509,671.02 and 90,464.84 is: 135,696.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,782.84 : 509,671.02 = 90,464.84 : x
  2. Step 2: Convert to fraction form
    339,782.84/509,671.02 = 90,464.84/x
  3. Step 3: Cross multiply
    339,782.84x = 509,671.02 × 90,464.84
  4. Step 4: Simplify right side
    339,782.84x = 46,107,307,276.94
  5. Step 5: Solve for x
    x = 46,107,307,276.94/339,782.84
  6. Step 6: Final answer
    x = 135,696.40

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1.5x scale

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.