Home / 447,890.40-671,821.20-148,384.80

Finding the Fourth Proportional to 447,890.40, 671,821.20 and 148,384.80

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Solution

The fourth proportional to 447,890.40, 671,821.20 and 148,384.80 is: 222,572.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,890.40 : 671,821.20 = 148,384.80 : x
  2. Step 2: Convert to fraction form
    447,890.40/671,821.20 = 148,384.80/x
  3. Step 3: Cross multiply
    447,890.40x = 671,821.20 × 148,384.80
  4. Step 4: Simplify right side
    447,890.40x = 99,688,054,397.76
  5. Step 5: Solve for x
    x = 99,688,054,397.76/447,890.40
  6. Step 6: Final answer
    x = 222,572.43

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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.