Home / 280,811.38-387,465.96-159,950.02

Finding the Fourth Proportional to 280,811.38, 387,465.96 and 159,950.02

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Solution

The fourth proportional to 280,811.38, 387,465.96 and 159,950.02 is: 220,700.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,811.38 : 387,465.96 = 159,950.02 : x
  2. Step 2: Convert to fraction form
    280,811.38/387,465.96 = 159,950.02/x
  3. Step 3: Cross multiply
    280,811.38x = 387,465.96 × 159,950.02
  4. Step 4: Simplify right side
    280,811.38x = 61,975,188,051.32
  5. Step 5: Solve for x
    x = 61,975,188,051.32/280,811.38
  6. Step 6: Final answer
    x = 220,700.41

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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.