Home / 278,830.74-384,788.76-151,506.36

Finding the Fourth Proportional to 278,830.74, 384,788.76 and 151,506.36

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Solution

The fourth proportional to 278,830.74, 384,788.76 and 151,506.36 is: 209,080.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,830.74 : 384,788.76 = 151,506.36 : x
  2. Step 2: Convert to fraction form
    278,830.74/384,788.76 = 151,506.36/x
  3. Step 3: Cross multiply
    278,830.74x = 384,788.76 × 151,506.36
  4. Step 4: Simplify right side
    278,830.74x = 58,297,944,396.51
  5. Step 5: Solve for x
    x = 58,297,944,396.51/278,830.74
  6. Step 6: Final answer
    x = 209,080.05

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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.