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Finding the Fourth Proportional to 358,817, 495,190.20 and 197,672.36

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Solution

The fourth proportional to 358,817, 495,190.20 and 197,672.36 is: 272,800.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,817 : 495,190.20 = 197,672.36 : x
  2. Step 2: Convert to fraction form
    358,817/495,190.20 = 197,672.36/x
  3. Step 3: Cross multiply
    358,817x = 495,190.20 × 197,672.36
  4. Step 4: Simplify right side
    358,817x = 97,885,415,482.87
  5. Step 5: Solve for x
    x = 97,885,415,482.87/358,817
  6. Step 6: Final answer
    x = 272,800.38

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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.