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Finding the Fourth Proportional to 369,276.72, 509,601.60 and 199,510.80

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Solution

The fourth proportional to 369,276.72, 509,601.60 and 199,510.80 is: 275,324.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,276.72 : 509,601.60 = 199,510.80 : x
  2. Step 2: Convert to fraction form
    369,276.72/509,601.60 = 199,510.80/x
  3. Step 3: Cross multiply
    369,276.72x = 509,601.60 × 199,510.80
  4. Step 4: Simplify right side
    369,276.72x = 101,671,022,897.28
  5. Step 5: Solve for x
    x = 101,671,022,897.28/369,276.72
  6. Step 6: Final answer
    x = 275,324.76

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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.