Home / 430,899.03-646,244.72-190,880.22

Finding the Fourth Proportional to 430,899.03, 646,244.72 and 190,880.22

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Solution

The fourth proportional to 430,899.03, 646,244.72 and 190,880.22 is: 286,274.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,899.03 : 646,244.72 = 190,880.22 : x
  2. Step 2: Convert to fraction form
    430,899.03/646,244.72 = 190,880.22/x
  3. Step 3: Cross multiply
    430,899.03x = 646,244.72 × 190,880.22
  4. Step 4: Simplify right side
    430,899.03x = 123,355,334,426.27
  5. Step 5: Solve for x
    x = 123,355,334,426.27/430,899.03
  6. Step 6: Final answer
    x = 286,274.34

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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.