Home / 456,187.20-684,280.80-206,869.20

Finding the Fourth Proportional to 456,187.20, 684,280.80 and 206,869.20

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Solution

The fourth proportional to 456,187.20, 684,280.80 and 206,869.20 is: 310,303.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,187.20 : 684,280.80 = 206,869.20 : x
  2. Step 2: Convert to fraction form
    456,187.20/684,280.80 = 206,869.20/x
  3. Step 3: Cross multiply
    456,187.20x = 684,280.80 × 206,869.20
  4. Step 4: Simplify right side
    456,187.20x = 141,556,621,671.36
  5. Step 5: Solve for x
    x = 141,556,621,671.36/456,187.20
  6. Step 6: Final answer
    x = 310,303.80

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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.