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Finding the Fourth Proportional to 377,313.67, 520,682 and 207,547.80

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Solution

The fourth proportional to 377,313.67, 520,682 and 207,547.80 is: 286,409.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,313.67 : 520,682 = 207,547.80 : x
  2. Step 2: Convert to fraction form
    377,313.67/520,682 = 207,547.80/x
  3. Step 3: Cross multiply
    377,313.67x = 520,682 × 207,547.80
  4. Step 4: Simplify right side
    377,313.67x = 108,066,403,599.60
  5. Step 5: Solve for x
    x = 108,066,403,599.60/377,313.67
  6. Step 6: Final answer
    x = 286,409.99

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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.