Home / 456,220.20-684,395.10-140,644.20

Finding the Fourth Proportional to 456,220.20, 684,395.10 and 140,644.20

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Solution

The fourth proportional to 456,220.20, 684,395.10 and 140,644.20 is: 210,986.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,220.20 : 684,395.10 = 140,644.20 : x
  2. Step 2: Convert to fraction form
    456,220.20/684,395.10 = 140,644.20/x
  3. Step 3: Cross multiply
    456,220.20x = 684,395.10 × 140,644.20
  4. Step 4: Simplify right side
    456,220.20x = 96,256,201,323.42
  5. Step 5: Solve for x
    x = 96,256,201,323.42/456,220.20
  6. Step 6: Final answer
    x = 210,986.28

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1.5x scale

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.