Home / 278,929.04-384,926-151,604.64

Finding the Fourth Proportional to 278,929.04, 384,926 and 151,604.64

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Solution

The fourth proportional to 278,929.04, 384,926 and 151,604.64 is: 209,216.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,929.04 : 384,926 = 151,604.64 : x
  2. Step 2: Convert to fraction form
    278,929.04/384,926 = 151,604.64/x
  3. Step 3: Cross multiply
    278,929.04x = 384,926 × 151,604.64
  4. Step 4: Simplify right side
    278,929.04x = 58,356,567,656.64
  5. Step 5: Solve for x
    x = 58,356,567,656.64/278,929.04
  6. Step 6: Final answer
    x = 209,216.54

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1.5x scale

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.