Home / 281,445.15-388,393.79-152,383.60

Finding the Fourth Proportional to 281,445.15, 388,393.79 and 152,383.60

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Solution

The fourth proportional to 281,445.15, 388,393.79 and 152,383.60 is: 210,289.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,445.15 : 388,393.79 = 152,383.60 : x
  2. Step 2: Convert to fraction form
    281,445.15/388,393.79 = 152,383.60/x
  3. Step 3: Cross multiply
    281,445.15x = 388,393.79 × 152,383.60
  4. Step 4: Simplify right side
    281,445.15x = 59,184,843,937.84
  5. Step 5: Solve for x
    x = 59,184,843,937.84/281,445.15
  6. Step 6: Final answer
    x = 210,289.09

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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.