Home / 259,944.40-389,916.60-112,200.40

Finding the Fourth Proportional to 259,944.40, 389,916.60 and 112,200.40

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Solution

The fourth proportional to 259,944.40, 389,916.60 and 112,200.40 is: 168,300.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,944.40 : 389,916.60 = 112,200.40 : x
  2. Step 2: Convert to fraction form
    259,944.40/389,916.60 = 112,200.40/x
  3. Step 3: Cross multiply
    259,944.40x = 389,916.60 × 112,200.40
  4. Step 4: Simplify right side
    259,944.40x = 43,748,798,486.64
  5. Step 5: Solve for x
    x = 43,748,798,486.64/259,944.40
  6. Step 6: Final answer
    x = 168,300.60

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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.