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Finding the Fourth Proportional to 447,513.04, 671,109.72 and 147,938.32

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Solution

The fourth proportional to 447,513.04, 671,109.72 and 147,938.32 is: 221,854.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,513.04 : 671,109.72 = 147,938.32 : x
  2. Step 2: Convert to fraction form
    447,513.04/671,109.72 = 147,938.32/x
  3. Step 3: Cross multiply
    447,513.04x = 671,109.72 × 147,938.32
  4. Step 4: Simplify right side
    447,513.04x = 99,282,844,512.47
  5. Step 5: Solve for x
    x = 99,282,844,512.47/447,513.04
  6. Step 6: Final answer
    x = 221,854.64

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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.