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Finding the Fourth Proportional to 447,605.34, 671,415.12 and 249,186.90

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Solution

The fourth proportional to 447,605.34, 671,415.12 and 249,186.90 is: 373,784.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,605.34 : 671,415.12 = 249,186.90 : x
  2. Step 2: Convert to fraction form
    447,605.34/671,415.12 = 249,186.90/x
  3. Step 3: Cross multiply
    447,605.34x = 671,415.12 × 249,186.90
  4. Step 4: Simplify right side
    447,605.34x = 167,307,852,365.93
  5. Step 5: Solve for x
    x = 167,307,852,365.93/447,605.34
  6. Step 6: Final answer
    x = 373,784.31

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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.