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Finding the Fourth Proportional to 447,607.05, 671,417.69 and 249,188.55

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Solution

The fourth proportional to 447,607.05, 671,417.69 and 249,188.55 is: 373,786.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,607.05 : 671,417.69 = 249,188.55 : x
  2. Step 2: Convert to fraction form
    447,607.05/671,417.69 = 249,188.55/x
  3. Step 3: Cross multiply
    447,607.05x = 671,417.69 × 249,188.55
  4. Step 4: Simplify right side
    447,607.05x = 167,309,599,369.51
  5. Step 5: Solve for x
    x = 167,309,599,369.51/447,607.05
  6. Step 6: Final answer
    x = 373,786.78

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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.