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Finding the Fourth Proportional to 376,877, 565,574.70 and 155,261

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Solution

The fourth proportional to 376,877, 565,574.70 and 155,261 is: 232,998.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,877 : 565,574.70 = 155,261 : x
  2. Step 2: Convert to fraction form
    376,877/565,574.70 = 155,261/x
  3. Step 3: Cross multiply
    376,877x = 565,574.70 × 155,261
  4. Step 4: Simplify right side
    376,877x = 87,811,693,496.70
  5. Step 5: Solve for x
    x = 87,811,693,496.70/376,877
  6. Step 6: Final answer
    x = 232,998.28

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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.