Home / 379,331.02-523,487.40-209,576.08

Finding the Fourth Proportional to 379,331.02, 523,487.40 and 209,576.08

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Solution

The fourth proportional to 379,331.02, 523,487.40 and 209,576.08 is: 289,220.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,331.02 : 523,487.40 = 209,576.08 : x
  2. Step 2: Convert to fraction form
    379,331.02/523,487.40 = 209,576.08/x
  3. Step 3: Cross multiply
    379,331.02x = 523,487.40 × 209,576.08
  4. Step 4: Simplify right side
    379,331.02x = 109,710,437,221.39
  5. Step 5: Solve for x
    x = 109,710,437,221.39/379,331.02
  6. Step 6: Final answer
    x = 289,220.84

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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.