Home / 280,612.37-387,253.58-153,296.16

Finding the Fourth Proportional to 280,612.37, 387,253.58 and 153,296.16

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Solution

The fourth proportional to 280,612.37, 387,253.58 and 153,296.16 is: 211,553.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,612.37 : 387,253.58 = 153,296.16 : x
  2. Step 2: Convert to fraction form
    280,612.37/387,253.58 = 153,296.16/x
  3. Step 3: Cross multiply
    280,612.37x = 387,253.58 × 153,296.16
  4. Step 4: Simplify right side
    280,612.37x = 59,364,485,993.77
  5. Step 5: Solve for x
    x = 59,364,485,993.77/280,612.37
  6. Step 6: Final answer
    x = 211,553.35

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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.