Home / 284,409.36-392,515.20-163,555.92

Finding the Fourth Proportional to 284,409.36, 392,515.20 and 163,555.92

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Solution

The fourth proportional to 284,409.36, 392,515.20 and 163,555.92 is: 225,724.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,409.36 : 392,515.20 = 163,555.92 : x
  2. Step 2: Convert to fraction form
    284,409.36/392,515.20 = 163,555.92/x
  3. Step 3: Cross multiply
    284,409.36x = 392,515.20 × 163,555.92
  4. Step 4: Simplify right side
    284,409.36x = 64,198,184,649.98
  5. Step 5: Solve for x
    x = 64,198,184,649.98/284,409.36
  6. Step 6: Final answer
    x = 225,724.58

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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.