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Finding the Fourth Proportional to 307,184.98, 423,918.09 and 169,368.85

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Solution

The fourth proportional to 307,184.98, 423,918.09 and 169,368.85 is: 233,730.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,184.98 : 423,918.09 = 169,368.85 : x
  2. Step 2: Convert to fraction form
    307,184.98/423,918.09 = 169,368.85/x
  3. Step 3: Cross multiply
    307,184.98x = 423,918.09 × 169,368.85
  4. Step 4: Simplify right side
    307,184.98x = 71,798,519,397.50
  5. Step 5: Solve for x
    x = 71,798,519,397.50/307,184.98
  6. Step 6: Final answer
    x = 233,730.57

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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.