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Finding the Fourth Proportional to 443,750.80, 665,237.40 and 266,069.20

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Solution

The fourth proportional to 443,750.80, 665,237.40 and 266,069.20 is: 398,870.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,750.80 : 665,237.40 = 266,069.20 : x
  2. Step 2: Convert to fraction form
    443,750.80/665,237.40 = 266,069.20/x
  3. Step 3: Cross multiply
    443,750.80x = 665,237.40 × 266,069.20
  4. Step 4: Simplify right side
    443,750.80x = 176,999,182,828.08
  5. Step 5: Solve for x
    x = 176,999,182,828.08/443,750.80
  6. Step 6: Final answer
    x = 398,870.68

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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.