Home / 278,460.59-384,265.34-151,133.45

Finding the Fourth Proportional to 278,460.59, 384,265.34 and 151,133.45

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Solution

The fourth proportional to 278,460.59, 384,265.34 and 151,133.45 is: 208,558.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,460.59 : 384,265.34 = 151,133.45 : x
  2. Step 2: Convert to fraction form
    278,460.59/384,265.34 = 151,133.45/x
  3. Step 3: Cross multiply
    278,460.59x = 384,265.34 × 151,133.45
  4. Step 4: Simplify right side
    278,460.59x = 58,075,347,321.37
  5. Step 5: Solve for x
    x = 58,075,347,321.37/278,460.59
  6. Step 6: Final answer
    x = 208,558.59

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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.