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Finding the Fourth Proportional to 387,261.71, 581,119.93 and 162,604.87

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Solution

The fourth proportional to 387,261.71, 581,119.93 and 162,604.87 is: 244,002.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,261.71 : 581,119.93 = 162,604.87 : x
  2. Step 2: Convert to fraction form
    387,261.71/581,119.93 = 162,604.87/x
  3. Step 3: Cross multiply
    387,261.71x = 581,119.93 × 162,604.87
  4. Step 4: Simplify right side
    387,261.71x = 94,492,930,672.06
  5. Step 5: Solve for x
    x = 94,492,930,672.06/387,261.71
  6. Step 6: Final answer
    x = 244,002.77

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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.