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Finding the Fourth Proportional to 306,903.09, 423,537.71 and 169,087.62

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Solution

The fourth proportional to 306,903.09, 423,537.71 and 169,087.62 is: 233,347.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,903.09 : 423,537.71 = 169,087.62 : x
  2. Step 2: Convert to fraction form
    306,903.09/423,537.71 = 169,087.62/x
  3. Step 3: Cross multiply
    306,903.09x = 423,537.71 × 169,087.62
  4. Step 4: Simplify right side
    306,903.09x = 71,614,982,518.71
  5. Step 5: Solve for x
    x = 71,614,982,518.71/306,903.09
  6. Step 6: Final answer
    x = 233,347.22

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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.