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Finding the Fourth Proportional to 369,626.88, 554,440.44 and 129,928.98

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Solution

The fourth proportional to 369,626.88, 554,440.44 and 129,928.98 is: 194,893.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,626.88 : 554,440.44 = 129,928.98 : x
  2. Step 2: Convert to fraction form
    369,626.88/554,440.44 = 129,928.98/x
  3. Step 3: Cross multiply
    369,626.88x = 554,440.44 × 129,928.98
  4. Step 4: Simplify right side
    369,626.88x = 72,037,880,839.95
  5. Step 5: Solve for x
    x = 72,037,880,839.95/369,626.88
  6. Step 6: Final answer
    x = 194,893.51

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1.5x scale

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.