Home / 280,811.16-387,518.84-159,952.40

Finding the Fourth Proportional to 280,811.16, 387,518.84 and 159,952.40

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Solution

The fourth proportional to 280,811.16, 387,518.84 and 159,952.40 is: 220,733.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,811.16 : 387,518.84 = 159,952.40 : x
  2. Step 2: Convert to fraction form
    280,811.16/387,518.84 = 159,952.40/x
  3. Step 3: Cross multiply
    280,811.16x = 387,518.84 × 159,952.40
  4. Step 4: Simplify right side
    280,811.16x = 61,984,568,503.22
  5. Step 5: Solve for x
    x = 61,984,568,503.22/280,811.16
  6. Step 6: Final answer
    x = 220,733.99

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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.