Home / 278,923.16-384,916.30-151,598.72

Finding the Fourth Proportional to 278,923.16, 384,916.30 and 151,598.72

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Solution

The fourth proportional to 278,923.16, 384,916.30 and 151,598.72 is: 209,207.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,923.16 : 384,916.30 = 151,598.72 : x
  2. Step 2: Convert to fraction form
    278,923.16/384,916.30 = 151,598.72/x
  3. Step 3: Cross multiply
    278,923.16x = 384,916.30 × 151,598.72
  4. Step 4: Simplify right side
    278,923.16x = 58,352,816,083.56
  5. Step 5: Solve for x
    x = 58,352,816,083.56/278,923.16
  6. Step 6: Final answer
    x = 209,207.50

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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.