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Finding the Fourth Proportional to 387,038.99, 534,096.07 and 214,967.96

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Solution

The fourth proportional to 387,038.99, 534,096.07 and 214,967.96 is: 296,645.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,038.99 : 534,096.07 = 214,967.96 : x
  2. Step 2: Convert to fraction form
    387,038.99/534,096.07 = 214,967.96/x
  3. Step 3: Cross multiply
    387,038.99x = 534,096.07 × 214,967.96
  4. Step 4: Simplify right side
    387,038.99x = 114,813,542,611.92
  5. Step 5: Solve for x
    x = 114,813,542,611.92/387,038.99
  6. Step 6: Final answer
    x = 296,645.93

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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.