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Finding the Fourth Proportional to 245,430.60, 368,145.90 and 185,944.20

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Solution

The fourth proportional to 245,430.60, 368,145.90 and 185,944.20 is: 278,916.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,430.60 : 368,145.90 = 185,944.20 : x
  2. Step 2: Convert to fraction form
    245,430.60/368,145.90 = 185,944.20/x
  3. Step 3: Cross multiply
    245,430.60x = 368,145.90 × 185,944.20
  4. Step 4: Simplify right side
    245,430.60x = 68,454,594,858.78
  5. Step 5: Solve for x
    x = 68,454,594,858.78/245,430.60
  6. Step 6: Final answer
    x = 278,916.30

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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.