Home / 430,847.74-646,271.10-115,296.43

Finding the Fourth Proportional to 430,847.74, 646,271.10 and 115,296.43

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Solution

The fourth proportional to 430,847.74, 646,271.10 and 115,296.43 is: 172,944.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,847.74 : 646,271.10 = 115,296.43 : x
  2. Step 2: Convert to fraction form
    430,847.74/646,271.10 = 115,296.43/x
  3. Step 3: Cross multiply
    430,847.74x = 646,271.10 × 115,296.43
  4. Step 4: Simplify right side
    430,847.74x = 74,512,750,642.17
  5. Step 5: Solve for x
    x = 74,512,750,642.17/430,847.74
  6. Step 6: Final answer
    x = 172,944.51

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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.