Home / 221,784.02-305,955.25-145,270

Finding the Fourth Proportional to 221,784.02, 305,955.25 and 145,270

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Solution

The fourth proportional to 221,784.02, 305,955.25 and 145,270 is: 200,402.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,784.02 : 305,955.25 = 145,270 : x
  2. Step 2: Convert to fraction form
    221,784.02/305,955.25 = 145,270/x
  3. Step 3: Cross multiply
    221,784.02x = 305,955.25 × 145,270
  4. Step 4: Simplify right side
    221,784.02x = 44,446,119,167.50
  5. Step 5: Solve for x
    x = 44,446,119,167.50/221,784.02
  6. Step 6: Final answer
    x = 200,402.71

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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.