Home / 412,210.08-618,107.40-145,933.20

Finding the Fourth Proportional to 412,210.08, 618,107.40 and 145,933.20

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Solution

The fourth proportional to 412,210.08, 618,107.40 and 145,933.20 is: 218,826.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,210.08 : 618,107.40 = 145,933.20 : x
  2. Step 2: Convert to fraction form
    412,210.08/618,107.40 = 145,933.20/x
  3. Step 3: Cross multiply
    412,210.08x = 618,107.40 × 145,933.20
  4. Step 4: Simplify right side
    412,210.08x = 90,202,390,825.68
  5. Step 5: Solve for x
    x = 90,202,390,825.68/412,210.08
  6. Step 6: Final answer
    x = 218,826.26

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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.