Home / 280,169.40-386,638.92-152,844.60

Finding the Fourth Proportional to 280,169.40, 386,638.92 and 152,844.60

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Solution

The fourth proportional to 280,169.40, 386,638.92 and 152,844.60 is: 210,928.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,169.40 : 386,638.92 = 152,844.60 : x
  2. Step 2: Convert to fraction form
    280,169.40/386,638.92 = 152,844.60/x
  3. Step 3: Cross multiply
    280,169.40x = 386,638.92 × 152,844.60
  4. Step 4: Simplify right side
    280,169.40x = 59,095,671,071.83
  5. Step 5: Solve for x
    x = 59,095,671,071.83/280,169.40
  6. Step 6: Final answer
    x = 210,928.36

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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.