Home / 278,559.19-384,411.67-151,234.80

Finding the Fourth Proportional to 278,559.19, 384,411.67 and 151,234.80

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Solution

The fourth proportional to 278,559.19, 384,411.67 and 151,234.80 is: 208,704.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,559.19 : 384,411.67 = 151,234.80 : x
  2. Step 2: Convert to fraction form
    278,559.19/384,411.67 = 151,234.80/x
  3. Step 3: Cross multiply
    278,559.19x = 384,411.67 × 151,234.80
  4. Step 4: Simplify right side
    278,559.19x = 58,136,422,030.12
  5. Step 5: Solve for x
    x = 58,136,422,030.12/278,559.19
  6. Step 6: Final answer
    x = 208,704.02

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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.