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Finding the Fourth Proportional to 376,886.50, 565,588.95 and 155,270.50

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Solution

The fourth proportional to 376,886.50, 565,588.95 and 155,270.50 is: 233,012.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,886.50 : 565,588.95 = 155,270.50 : x
  2. Step 2: Convert to fraction form
    376,886.50/565,588.95 = 155,270.50/x
  3. Step 3: Cross multiply
    376,886.50x = 565,588.95 × 155,270.50
  4. Step 4: Simplify right side
    376,886.50x = 87,819,279,060.98
  5. Step 5: Solve for x
    x = 87,819,279,060.98/376,886.50
  6. Step 6: Final answer
    x = 233,012.54

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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.