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Finding the Fourth Proportional to 219,286.74, 302,598.81 and 123,802.86

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Solution

The fourth proportional to 219,286.74, 302,598.81 and 123,802.86 is: 170,838.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,286.74 : 302,598.81 = 123,802.86 : x
  2. Step 2: Convert to fraction form
    219,286.74/302,598.81 = 123,802.86/x
  3. Step 3: Cross multiply
    219,286.74x = 302,598.81 × 123,802.86
  4. Step 4: Simplify right side
    219,286.74x = 37,462,598,110.60
  5. Step 5: Solve for x
    x = 37,462,598,110.60/219,286.74
  6. Step 6: Final answer
    x = 170,838.41

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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.