Home / 642,984.80-963,873.74-216,222.21

Finding the Fourth Proportional to 642,984.80, 963,873.74 and 216,222.21

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Solution

The fourth proportional to 642,984.80, 963,873.74 and 216,222.21 is: 324,130.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,984.80 : 963,873.74 = 216,222.21 : x
  2. Step 2: Convert to fraction form
    642,984.80/963,873.74 = 216,222.21/x
  3. Step 3: Cross multiply
    642,984.80x = 963,873.74 × 216,222.21
  4. Step 4: Simplify right side
    642,984.80x = 208,410,909,142.65
  5. Step 5: Solve for x
    x = 208,410,909,142.65/642,984.80
  6. Step 6: Final answer
    x = 324,130.38

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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.