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Finding the Fourth Proportional to 447,006.80, 670,510.20 and 131,495.60

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Solution

The fourth proportional to 447,006.80, 670,510.20 and 131,495.60 is: 197,243.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,006.80 : 670,510.20 = 131,495.60 : x
  2. Step 2: Convert to fraction form
    447,006.80/670,510.20 = 131,495.60/x
  3. Step 3: Cross multiply
    447,006.80x = 670,510.20 × 131,495.60
  4. Step 4: Simplify right side
    447,006.80x = 88,169,141,055.12
  5. Step 5: Solve for x
    x = 88,169,141,055.12/447,006.80
  6. Step 6: Final answer
    x = 197,243.40

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1.5x scale

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.