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Finding the Fourth Proportional to 377,097.12, 520,389.36 and 207,329.76

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Solution

The fourth proportional to 377,097.12, 520,389.36 and 207,329.76 is: 286,112.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,097.12 : 520,389.36 = 207,329.76 : x
  2. Step 2: Convert to fraction form
    377,097.12/520,389.36 = 207,329.76/x
  3. Step 3: Cross multiply
    377,097.12x = 520,389.36 × 207,329.76
  4. Step 4: Simplify right side
    377,097.12x = 107,892,201,115.35
  5. Step 5: Solve for x
    x = 107,892,201,115.35/377,097.12
  6. Step 6: Final answer
    x = 286,112.50

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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.