Home / 280,466.24-387,040.48-153,141.44

Finding the Fourth Proportional to 280,466.24, 387,040.48 and 153,141.44

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Solution

The fourth proportional to 280,466.24, 387,040.48 and 153,141.44 is: 211,333.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,466.24 : 387,040.48 = 153,141.44 : x
  2. Step 2: Convert to fraction form
    280,466.24/387,040.48 = 153,141.44/x
  3. Step 3: Cross multiply
    280,466.24x = 387,040.48 × 153,141.44
  4. Step 4: Simplify right side
    280,466.24x = 59,271,936,445.49
  5. Step 5: Solve for x
    x = 59,271,936,445.49/280,466.24
  6. Step 6: Final answer
    x = 211,333.59

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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.