Home / 278,666.23-384,561.65-151,342.73

Finding the Fourth Proportional to 278,666.23, 384,561.65 and 151,342.73

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Solution

The fourth proportional to 278,666.23, 384,561.65 and 151,342.73 is: 208,854.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,666.23 : 384,561.65 = 151,342.73 : x
  2. Step 2: Convert to fraction form
    278,666.23/384,561.65 = 151,342.73/x
  3. Step 3: Cross multiply
    278,666.23x = 384,561.65 × 151,342.73
  4. Step 4: Simplify right side
    278,666.23x = 58,200,609,585.95
  5. Step 5: Solve for x
    x = 58,200,609,585.95/278,666.23
  6. Step 6: Final answer
    x = 208,854.19

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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.