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Finding the Fourth Proportional to 377,274.58, 520,648.77 and 207,513.16

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Solution

The fourth proportional to 377,274.58, 520,648.77 and 207,513.16 is: 286,373.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,274.58 : 520,648.77 = 207,513.16 : x
  2. Step 2: Convert to fraction form
    377,274.58/520,648.77 = 207,513.16/x
  3. Step 3: Cross multiply
    377,274.58x = 520,648.77 × 207,513.16
  4. Step 4: Simplify right side
    377,274.58x = 108,041,471,512.81
  5. Step 5: Solve for x
    x = 108,041,471,512.81/377,274.58
  6. Step 6: Final answer
    x = 286,373.58

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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.