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Finding the Fourth Proportional to 358,865.88, 538,280.88 and 134,209.74

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Solution

The fourth proportional to 358,865.88, 538,280.88 and 134,209.74 is: 201,307.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,865.88 : 538,280.88 = 134,209.74 : x
  2. Step 2: Convert to fraction form
    358,865.88/538,280.88 = 134,209.74/x
  3. Step 3: Cross multiply
    358,865.88x = 538,280.88 × 134,209.74
  4. Step 4: Simplify right side
    358,865.88x = 72,242,536,951.77
  5. Step 5: Solve for x
    x = 72,242,536,951.77/358,865.88
  6. Step 6: Final answer
    x = 201,307.90

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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.