Home / 278,438.11-384,244.79-151,113.70

Finding the Fourth Proportional to 278,438.11, 384,244.79 and 151,113.70

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Solution

The fourth proportional to 278,438.11, 384,244.79 and 151,113.70 is: 208,537.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,438.11 : 384,244.79 = 151,113.70 : x
  2. Step 2: Convert to fraction form
    278,438.11/384,244.79 = 151,113.70/x
  3. Step 3: Cross multiply
    278,438.11x = 384,244.79 × 151,113.70
  4. Step 4: Simplify right side
    278,438.11x = 58,064,651,922.62
  5. Step 5: Solve for x
    x = 58,064,651,922.62/278,438.11
  6. Step 6: Final answer
    x = 208,537.01

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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.