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Finding the Fourth Proportional to 272,000.28, 375,352.94 and 151,138.46

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Solution

The fourth proportional to 272,000.28, 375,352.94 and 151,138.46 is: 208,566.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,000.28 : 375,352.94 = 151,138.46 : x
  2. Step 2: Convert to fraction form
    272,000.28/375,352.94 = 151,138.46/x
  3. Step 3: Cross multiply
    272,000.28x = 375,352.94 × 151,138.46
  4. Step 4: Simplify right side
    272,000.28x = 56,730,262,675.62
  5. Step 5: Solve for x
    x = 56,730,262,675.62/272,000.28
  6. Step 6: Final answer
    x = 208,566.93

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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.