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Finding the Fourth Proportional to 377,512.77, 520,967.72 and 207,746.90

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Solution

The fourth proportional to 377,512.77, 520,967.72 and 207,746.90 is: 286,690.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,512.77 : 520,967.72 = 207,746.90 : x
  2. Step 2: Convert to fraction form
    377,512.77/520,967.72 = 207,746.90/x
  3. Step 3: Cross multiply
    377,512.77x = 520,967.72 × 207,746.90
  4. Step 4: Simplify right side
    377,512.77x = 108,229,428,698.23
  5. Step 5: Solve for x
    x = 108,229,428,698.23/377,512.77
  6. Step 6: Final answer
    x = 286,690.77

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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.