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Finding the Fourth Proportional to 447,509.47, 671,197.53 and 147,991.62

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Solution

The fourth proportional to 447,509.47, 671,197.53 and 147,991.62 is: 221,965.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,509.47 : 671,197.53 = 147,991.62 : x
  2. Step 2: Convert to fraction form
    447,509.47/671,197.53 = 147,991.62/x
  3. Step 3: Cross multiply
    447,509.47x = 671,197.53 × 147,991.62
  4. Step 4: Simplify right side
    447,509.47x = 99,331,609,804.70
  5. Step 5: Solve for x
    x = 99,331,609,804.70/447,509.47
  6. Step 6: Final answer
    x = 221,965.38

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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.