Home / 278,521.57-384,359.34-151,197.22

Finding the Fourth Proportional to 278,521.57, 384,359.34 and 151,197.22

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Solution

The fourth proportional to 278,521.57, 384,359.34 and 151,197.22 is: 208,651.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,521.57 : 384,359.34 = 151,197.22 : x
  2. Step 2: Convert to fraction form
    278,521.57/384,359.34 = 151,197.22/x
  3. Step 3: Cross multiply
    278,521.57x = 384,359.34 × 151,197.22
  4. Step 4: Simplify right side
    278,521.57x = 58,114,063,689.03
  5. Step 5: Solve for x
    x = 58,114,063,689.03/278,521.57
  6. Step 6: Final answer
    x = 208,651.93

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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.