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Finding the Fourth Proportional to 270,477.17, 405,752.66 and 112,668.72

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Solution

The fourth proportional to 270,477.17, 405,752.66 and 112,668.72 is: 169,018.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,477.17 : 405,752.66 = 112,668.72 : x
  2. Step 2: Convert to fraction form
    270,477.17/405,752.66 = 112,668.72/x
  3. Step 3: Cross multiply
    270,477.17x = 405,752.66 × 112,668.72
  4. Step 4: Simplify right side
    270,477.17x = 45,715,633,120.47
  5. Step 5: Solve for x
    x = 45,715,633,120.47/270,477.17
  6. Step 6: Final answer
    x = 169,018.45

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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.