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Finding the Fourth Proportional to 377,215.87, 520,547.51 and 207,450

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Solution

The fourth proportional to 377,215.87, 520,547.51 and 207,450 is: 286,275.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,215.87 : 520,547.51 = 207,450 : x
  2. Step 2: Convert to fraction form
    377,215.87/520,547.51 = 207,450/x
  3. Step 3: Cross multiply
    377,215.87x = 520,547.51 × 207,450
  4. Step 4: Simplify right side
    377,215.87x = 107,987,580,949.50
  5. Step 5: Solve for x
    x = 107,987,580,949.50/377,215.87
  6. Step 6: Final answer
    x = 286,275.29

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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.