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Finding the Fourth Proportional to 379,558.51, 523,790.77 and 207,477.16

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Solution

The fourth proportional to 379,558.51, 523,790.77 and 207,477.16 is: 286,318.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,558.51 : 523,790.77 = 207,477.16 : x
  2. Step 2: Convert to fraction form
    379,558.51/523,790.77 = 207,477.16/x
  3. Step 3: Cross multiply
    379,558.51x = 523,790.77 × 207,477.16
  4. Step 4: Simplify right side
    379,558.51x = 108,674,621,393.81
  5. Step 5: Solve for x
    x = 108,674,621,393.81/379,558.51
  6. Step 6: Final answer
    x = 286,318.50

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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.