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Finding the Fourth Proportional to 364,893.61, 547,116.86 and 128,263.45

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Solution

The fourth proportional to 364,893.61, 547,116.86 and 128,263.45 is: 192,316.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,893.61 : 547,116.86 = 128,263.45 : x
  2. Step 2: Convert to fraction form
    364,893.61/547,116.86 = 128,263.45/x
  3. Step 3: Cross multiply
    364,893.61x = 547,116.86 × 128,263.45
  4. Step 4: Simplify right side
    364,893.61x = 70,175,095,375.45
  5. Step 5: Solve for x
    x = 70,175,095,375.45/364,893.61
  6. Step 6: Final answer
    x = 192,316.59

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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.