Home / 280,168.32-386,637.12-152,844.96

Finding the Fourth Proportional to 280,168.32, 386,637.12 and 152,844.96

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Solution

The fourth proportional to 280,168.32, 386,637.12 and 152,844.96 is: 210,928.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,168.32 : 386,637.12 = 152,844.96 : x
  2. Step 2: Convert to fraction form
    280,168.32/386,637.12 = 152,844.96/x
  3. Step 3: Cross multiply
    280,168.32x = 386,637.12 × 152,844.96
  4. Step 4: Simplify right side
    280,168.32x = 59,095,535,140.92
  5. Step 5: Solve for x
    x = 59,095,535,140.92/280,168.32
  6. Step 6: Final answer
    x = 210,928.68

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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.