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Finding the Fourth Proportional to 315,079.40, 472,455.90 and 93,434.60

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Solution

The fourth proportional to 315,079.40, 472,455.90 and 93,434.60 is: 140,103.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,079.40 : 472,455.90 = 93,434.60 : x
  2. Step 2: Convert to fraction form
    315,079.40/472,455.90 = 93,434.60/x
  3. Step 3: Cross multiply
    315,079.40x = 472,455.90 × 93,434.60
  4. Step 4: Simplify right side
    315,079.40x = 44,143,728,034.14
  5. Step 5: Solve for x
    x = 44,143,728,034.14/315,079.40
  6. Step 6: Final answer
    x = 140,103.50

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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.