Home / 284,515.20-392,642.37-163,656.45

Finding the Fourth Proportional to 284,515.20, 392,642.37 and 163,656.45

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Solution

The fourth proportional to 284,515.20, 392,642.37 and 163,656.45 is: 225,852.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,515.20 : 392,642.37 = 163,656.45 : x
  2. Step 2: Convert to fraction form
    284,515.20/392,642.37 = 163,656.45/x
  3. Step 3: Cross multiply
    284,515.20x = 392,642.37 × 163,656.45
  4. Step 4: Simplify right side
    284,515.20x = 64,258,456,393.79
  5. Step 5: Solve for x
    x = 64,258,456,393.79/284,515.20
  6. Step 6: Final answer
    x = 225,852.45

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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.