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Finding the Fourth Proportional to 307,167.98, 423,893.90 and 171,210.68

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Solution

The fourth proportional to 307,167.98, 423,893.90 and 171,210.68 is: 236,271.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,167.98 : 423,893.90 = 171,210.68 : x
  2. Step 2: Convert to fraction form
    307,167.98/423,893.90 = 171,210.68/x
  3. Step 3: Cross multiply
    307,167.98x = 423,893.90 × 171,210.68
  4. Step 4: Simplify right side
    307,167.98x = 72,575,159,891.33
  5. Step 5: Solve for x
    x = 72,575,159,891.33/307,167.98
  6. Step 6: Final answer
    x = 236,271.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.