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Finding the Fourth Proportional to 255,102.84, 352,045.12 and 140,394.69

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Solution

The fourth proportional to 255,102.84, 352,045.12 and 140,394.69 is: 193,746.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,102.84 : 352,045.12 = 140,394.69 : x
  2. Step 2: Convert to fraction form
    255,102.84/352,045.12 = 140,394.69/x
  3. Step 3: Cross multiply
    255,102.84x = 352,045.12 × 140,394.69
  4. Step 4: Simplify right side
    255,102.84x = 49,425,265,488.41
  5. Step 5: Solve for x
    x = 49,425,265,488.41/255,102.84
  6. Step 6: Final answer
    x = 193,746.43

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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.