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Finding the Fourth Proportional to 151,374.75, 208,897.16 and 84,306.75

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Solution

The fourth proportional to 151,374.75, 208,897.16 and 84,306.75 is: 116,343.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,374.75 : 208,897.16 = 84,306.75 : x
  2. Step 2: Convert to fraction form
    151,374.75/208,897.16 = 84,306.75/x
  3. Step 3: Cross multiply
    151,374.75x = 208,897.16 × 84,306.75
  4. Step 4: Simplify right side
    151,374.75x = 17,611,440,222.30
  5. Step 5: Solve for x
    x = 17,611,440,222.30/151,374.75
  6. Step 6: Final answer
    x = 116,343.32

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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.