Home / 383,255.02-528,885.03-213,485.50

Finding the Fourth Proportional to 383,255.02, 528,885.03 and 213,485.50

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Solution

The fourth proportional to 383,255.02, 528,885.03 and 213,485.50 is: 294,606.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,255.02 : 528,885.03 = 213,485.50 : x
  2. Step 2: Convert to fraction form
    383,255.02/528,885.03 = 213,485.50/x
  3. Step 3: Cross multiply
    383,255.02x = 528,885.03 × 213,485.50
  4. Step 4: Simplify right side
    383,255.02x = 112,909,285,072.07
  5. Step 5: Solve for x
    x = 112,909,285,072.07/383,255.02
  6. Step 6: Final answer
    x = 294,606.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.