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Finding the Fourth Proportional to 376,866.32, 520,075.52 and 207,100.45

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Solution

The fourth proportional to 376,866.32, 520,075.52 and 207,100.45 is: 285,798.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,866.32 : 520,075.52 = 207,100.45 : x
  2. Step 2: Convert to fraction form
    376,866.32/520,075.52 = 207,100.45/x
  3. Step 3: Cross multiply
    376,866.32x = 520,075.52 × 207,100.45
  4. Step 4: Simplify right side
    376,866.32x = 107,707,870,590.10
  5. Step 5: Solve for x
    x = 107,707,870,590.10/376,866.32
  6. Step 6: Final answer
    x = 285,798.61

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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.