Home / 280,905.27-387,649.22-153,580.83

Finding the Fourth Proportional to 280,905.27, 387,649.22 and 153,580.83

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Solution

The fourth proportional to 280,905.27, 387,649.22 and 153,580.83 is: 211,941.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,905.27 : 387,649.22 = 153,580.83 : x
  2. Step 2: Convert to fraction form
    280,905.27/387,649.22 = 153,580.83/x
  3. Step 3: Cross multiply
    280,905.27x = 387,649.22 × 153,580.83
  4. Step 4: Simplify right side
    280,905.27x = 59,535,488,188.55
  5. Step 5: Solve for x
    x = 59,535,488,188.55/280,905.27
  6. Step 6: Final answer
    x = 211,941.51

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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.