Home / 430,979.60-646,168.84-190,962.96

Finding the Fourth Proportional to 430,979.60, 646,168.84 and 190,962.96

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Solution

The fourth proportional to 430,979.60, 646,168.84 and 190,962.96 is: 286,311.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,979.60 : 646,168.84 = 190,962.96 : x
  2. Step 2: Convert to fraction form
    430,979.60/646,168.84 = 190,962.96/x
  3. Step 3: Cross multiply
    430,979.60x = 646,168.84 × 190,962.96
  4. Step 4: Simplify right side
    430,979.60x = 123,394,314,346.17
  5. Step 5: Solve for x
    x = 123,394,314,346.17/430,979.60
  6. Step 6: Final answer
    x = 286,311.26

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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.