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Finding the Fourth Proportional to 369,740.70, 554,611.04 and 120,422.70

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Solution

The fourth proportional to 369,740.70, 554,611.04 and 120,422.70 is: 180,634.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,740.70 : 554,611.04 = 120,422.70 : x
  2. Step 2: Convert to fraction form
    369,740.70/554,611.04 = 120,422.70/x
  3. Step 3: Cross multiply
    369,740.70x = 554,611.04 × 120,422.70
  4. Step 4: Simplify right side
    369,740.70x = 66,787,758,886.61
  5. Step 5: Solve for x
    x = 66,787,758,886.61/369,740.70
  6. Step 6: Final answer
    x = 180,634.05

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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.