Home / 280,097.12-386,539.27-152,777.27

Finding the Fourth Proportional to 280,097.12, 386,539.27 and 152,777.27

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Solution

The fourth proportional to 280,097.12, 386,539.27 and 152,777.27 is: 210,835.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,097.12 : 386,539.27 = 152,777.27 : x
  2. Step 2: Convert to fraction form
    280,097.12/386,539.27 = 152,777.27/x
  3. Step 3: Cross multiply
    280,097.12x = 386,539.27 × 152,777.27
  4. Step 4: Simplify right side
    280,097.12x = 59,054,412,485.70
  5. Step 5: Solve for x
    x = 59,054,412,485.70/280,097.12
  6. Step 6: Final answer
    x = 210,835.49

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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.