Home / 280,835.02-387,588.61-160,019.67

Finding the Fourth Proportional to 280,835.02, 387,588.61 and 160,019.67

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Solution

The fourth proportional to 280,835.02, 387,588.61 and 160,019.67 is: 220,847.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,835.02 : 387,588.61 = 160,019.67 : x
  2. Step 2: Convert to fraction form
    280,835.02/387,588.61 = 160,019.67/x
  3. Step 3: Cross multiply
    280,835.02x = 387,588.61 × 160,019.67
  4. Step 4: Simplify right side
    280,835.02x = 62,021,801,467.96
  5. Step 5: Solve for x
    x = 62,021,801,467.96/280,835.02
  6. Step 6: Final answer
    x = 220,847.82

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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.