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Finding the Fourth Proportional to 358,990.76, 495,384.98 and 197,836.80

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Solution

The fourth proportional to 358,990.76, 495,384.98 and 197,836.80 is: 273,002.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,990.76 : 495,384.98 = 197,836.80 : x
  2. Step 2: Convert to fraction form
    358,990.76/495,384.98 = 197,836.80/x
  3. Step 3: Cross multiply
    358,990.76x = 495,384.98 × 197,836.80
  4. Step 4: Simplify right side
    358,990.76x = 98,005,379,211.26
  5. Step 5: Solve for x
    x = 98,005,379,211.26/358,990.76
  6. Step 6: Final answer
    x = 273,002.51

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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.