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Finding the Fourth Proportional to 285,501.63, 393,987 and 169,293.33

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Solution

The fourth proportional to 285,501.63, 393,987 and 169,293.33 is: 233,621.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,501.63 : 393,987 = 169,293.33 : x
  2. Step 2: Convert to fraction form
    285,501.63/393,987 = 169,293.33/x
  3. Step 3: Cross multiply
    285,501.63x = 393,987 × 169,293.33
  4. Step 4: Simplify right side
    285,501.63x = 66,699,371,206.71
  5. Step 5: Solve for x
    x = 66,699,371,206.71/285,501.63
  6. Step 6: Final answer
    x = 233,621.68

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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.