Home / 278,913.59-384,900.80-151,589.19

Finding the Fourth Proportional to 278,913.59, 384,900.80 and 151,589.19

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Solution

The fourth proportional to 278,913.59, 384,900.80 and 151,589.19 is: 209,193.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,913.59 : 384,900.80 = 151,589.19 : x
  2. Step 2: Convert to fraction form
    278,913.59/384,900.80 = 151,589.19/x
  3. Step 3: Cross multiply
    278,913.59x = 384,900.80 × 151,589.19
  4. Step 4: Simplify right side
    278,913.59x = 58,346,799,744.41
  5. Step 5: Solve for x
    x = 58,346,799,744.41/278,913.59
  6. Step 6: Final answer
    x = 209,193.11

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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.