Home / 278,453.84-384,266.67-151,129.45

Finding the Fourth Proportional to 278,453.84, 384,266.67 and 151,129.45

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Solution

The fourth proportional to 278,453.84, 384,266.67 and 151,129.45 is: 208,558.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,453.84 : 384,266.67 = 151,129.45 : x
  2. Step 2: Convert to fraction form
    278,453.84/384,266.67 = 151,129.45/x
  3. Step 3: Cross multiply
    278,453.84x = 384,266.67 × 151,129.45
  4. Step 4: Simplify right side
    278,453.84x = 58,074,008,569.10
  5. Step 5: Solve for x
    x = 58,074,008,569.10/278,453.84
  6. Step 6: Final answer
    x = 208,558.84

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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.