Home / 278,312.63-384,071.57-150,988.19

Finding the Fourth Proportional to 278,312.63, 384,071.57 and 150,988.19

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Solution

The fourth proportional to 278,312.63, 384,071.57 and 150,988.19 is: 208,363.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,312.63 : 384,071.57 = 150,988.19 : x
  2. Step 2: Convert to fraction form
    278,312.63/384,071.57 = 150,988.19/x
  3. Step 3: Cross multiply
    278,312.63x = 384,071.57 × 150,988.19
  4. Step 4: Simplify right side
    278,312.63x = 57,990,269,469.64
  5. Step 5: Solve for x
    x = 57,990,269,469.64/278,312.63
  6. Step 6: Final answer
    x = 208,363.77

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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.