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Finding the Fourth Proportional to 205,528.70, 308,001.45 and 151,801.40

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Solution

The fourth proportional to 205,528.70, 308,001.45 and 151,801.40 is: 227,486.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,528.70 : 308,001.45 = 151,801.40 : x
  2. Step 2: Convert to fraction form
    205,528.70/308,001.45 = 151,801.40/x
  3. Step 3: Cross multiply
    205,528.70x = 308,001.45 × 151,801.40
  4. Step 4: Simplify right side
    205,528.70x = 46,755,051,312.03
  5. Step 5: Solve for x
    x = 46,755,051,312.03/205,528.70
  6. Step 6: Final answer
    x = 227,486.73

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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.