Home / 278,389.35-384,178.32-151,064.94

Finding the Fourth Proportional to 278,389.35, 384,178.32 and 151,064.94

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Solution

The fourth proportional to 278,389.35, 384,178.32 and 151,064.94 is: 208,470.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,389.35 : 384,178.32 = 151,064.94 : x
  2. Step 2: Convert to fraction form
    278,389.35/384,178.32 = 151,064.94/x
  3. Step 3: Cross multiply
    278,389.35x = 384,178.32 × 151,064.94
  4. Step 4: Simplify right side
    278,389.35x = 58,035,874,860.10
  5. Step 5: Solve for x
    x = 58,035,874,860.10/278,389.35
  6. Step 6: Final answer
    x = 208,470.17

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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.