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Finding the Fourth Proportional to 370,512, 554,879.94 and 190,122.72

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Solution

The fourth proportional to 370,512, 554,879.94 and 190,122.72 is: 284,728.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,512 : 554,879.94 = 190,122.72 : x
  2. Step 2: Convert to fraction form
    370,512/554,879.94 = 190,122.72/x
  3. Step 3: Cross multiply
    370,512x = 554,879.94 × 190,122.72
  4. Step 4: Simplify right side
    370,512x = 105,495,283,466.24
  5. Step 5: Solve for x
    x = 105,495,283,466.24/370,512
  6. Step 6: Final answer
    x = 284,728.39

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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.