Home / 405,238.13-607,857.20-155,861.81

Finding the Fourth Proportional to 405,238.13, 607,857.20 and 155,861.81

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Solution

The fourth proportional to 405,238.13, 607,857.20 and 155,861.81 is: 233,792.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,238.13 : 607,857.20 = 155,861.81 : x
  2. Step 2: Convert to fraction form
    405,238.13/607,857.20 = 155,861.81/x
  3. Step 3: Cross multiply
    405,238.13x = 607,857.20 × 155,861.81
  4. Step 4: Simplify right side
    405,238.13x = 94,741,725,322.83
  5. Step 5: Solve for x
    x = 94,741,725,322.83/405,238.13
  6. Step 6: Final answer
    x = 233,792.72

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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.