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Finding the Fourth Proportional to 369,503.76, 509,915.61 and 199,737.75

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Solution

The fourth proportional to 369,503.76, 509,915.61 and 199,737.75 is: 275,638.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,503.76 : 509,915.61 = 199,737.75 : x
  2. Step 2: Convert to fraction form
    369,503.76/509,915.61 = 199,737.75/x
  3. Step 3: Cross multiply
    369,503.76x = 509,915.61 × 199,737.75
  4. Step 4: Simplify right side
    369,503.76x = 101,849,396,631.28
  5. Step 5: Solve for x
    x = 101,849,396,631.28/369,503.76
  6. Step 6: Final answer
    x = 275,638.32

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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.