Home / 278,828.91-384,787.40-151,506.63

Finding the Fourth Proportional to 278,828.91, 384,787.40 and 151,506.63

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Solution

The fourth proportional to 278,828.91, 384,787.40 and 151,506.63 is: 209,081.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,828.91 : 384,787.40 = 151,506.63 : x
  2. Step 2: Convert to fraction form
    278,828.91/384,787.40 = 151,506.63/x
  3. Step 3: Cross multiply
    278,828.91x = 384,787.40 × 151,506.63
  4. Step 4: Simplify right side
    278,828.91x = 58,297,841,482.93
  5. Step 5: Solve for x
    x = 58,297,841,482.93/278,828.91
  6. Step 6: Final answer
    x = 209,081.05

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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.