Home / 280,599.06-387,226.69-151,537.52

Finding the Fourth Proportional to 280,599.06, 387,226.69 and 151,537.52

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Solution

The fourth proportional to 280,599.06, 387,226.69 and 151,537.52 is: 209,121.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,599.06 : 387,226.69 = 151,537.52 : x
  2. Step 2: Convert to fraction form
    280,599.06/387,226.69 = 151,537.52/x
  3. Step 3: Cross multiply
    280,599.06x = 387,226.69 × 151,537.52
  4. Step 4: Simplify right side
    280,599.06x = 58,679,372,869.63
  5. Step 5: Solve for x
    x = 58,679,372,869.63/280,599.06
  6. Step 6: Final answer
    x = 209,121.77

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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.