Home / 376,890.80-565,271.40-140,111.60

Finding the Fourth Proportional to 376,890.80, 565,271.40 and 140,111.60

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Solution

The fourth proportional to 376,890.80, 565,271.40 and 140,111.60 is: 210,143.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,890.80 : 565,271.40 = 140,111.60 : x
  2. Step 2: Convert to fraction form
    376,890.80/565,271.40 = 140,111.60/x
  3. Step 3: Cross multiply
    376,890.80x = 565,271.40 × 140,111.60
  4. Step 4: Simplify right side
    376,890.80x = 79,201,080,288.24
  5. Step 5: Solve for x
    x = 79,201,080,288.24/376,890.80
  6. Step 6: Final answer
    x = 210,143.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.