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Finding the Fourth Proportional to 272,102.70, 375,485.65 and 151,239.83

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Solution

The fourth proportional to 272,102.70, 375,485.65 and 151,239.83 is: 208,702.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,102.70 : 375,485.65 = 151,239.83 : x
  2. Step 2: Convert to fraction form
    272,102.70/375,485.65 = 151,239.83/x
  3. Step 3: Cross multiply
    272,102.70x = 375,485.65 × 151,239.83
  4. Step 4: Simplify right side
    272,102.70x = 56,788,386,434.05
  5. Step 5: Solve for x
    x = 56,788,386,434.05/272,102.70
  6. Step 6: Final answer
    x = 208,702.03

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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.