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Finding the Fourth Proportional to 358,870.47, 495,236.67 and 195,533.78

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Solution

The fourth proportional to 358,870.47, 495,236.67 and 195,533.78 is: 269,834.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,870.47 : 495,236.67 = 195,533.78 : x
  2. Step 2: Convert to fraction form
    358,870.47/495,236.67 = 195,533.78/x
  3. Step 3: Cross multiply
    358,870.47x = 495,236.67 × 195,533.78
  4. Step 4: Simplify right side
    358,870.47x = 96,835,496,520.09
  5. Step 5: Solve for x
    x = 96,835,496,520.09/358,870.47
  6. Step 6: Final answer
    x = 269,834.12

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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.