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Finding the Fourth Proportional to 387,263.71, 581,122.93 and 162,606.87

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Solution

The fourth proportional to 387,263.71, 581,122.93 and 162,606.87 is: 244,005.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,263.71 : 581,122.93 = 162,606.87 : x
  2. Step 2: Convert to fraction form
    387,263.71/581,122.93 = 162,606.87/x
  3. Step 3: Cross multiply
    387,263.71x = 581,122.93 × 162,606.87
  4. Step 4: Simplify right side
    387,263.71x = 94,494,580,732.53
  5. Step 5: Solve for x
    x = 94,494,580,732.53/387,263.71
  6. Step 6: Final answer
    x = 244,005.77

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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.