Home / 430,941.07-646,411.59-135,453.07

Finding the Fourth Proportional to 430,941.07, 646,411.59 and 135,453.07

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Solution

The fourth proportional to 430,941.07, 646,411.59 and 135,453.07 is: 203,179.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,941.07 : 646,411.59 = 135,453.07 : x
  2. Step 2: Convert to fraction form
    430,941.07/646,411.59 = 135,453.07/x
  3. Step 3: Cross multiply
    430,941.07x = 646,411.59 × 135,453.07
  4. Step 4: Simplify right side
    430,941.07x = 87,558,434,349.08
  5. Step 5: Solve for x
    x = 87,558,434,349.08/430,941.07
  6. Step 6: Final answer
    x = 203,179.60

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Similar ratio
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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.