Home / 660,195.02-990,281.49-210,912.62

Finding the Fourth Proportional to 660,195.02, 990,281.49 and 210,912.62

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Solution

The fourth proportional to 660,195.02, 990,281.49 and 210,912.62 is: 316,365.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,195.02 : 990,281.49 = 210,912.62 : x
  2. Step 2: Convert to fraction form
    660,195.02/990,281.49 = 210,912.62/x
  3. Step 3: Cross multiply
    660,195.02x = 990,281.49 × 210,912.62
  4. Step 4: Simplify right side
    660,195.02x = 208,862,863,593.40
  5. Step 5: Solve for x
    x = 208,862,863,593.40/660,195.02
  6. Step 6: Final answer
    x = 316,365.40

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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.