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Finding the Fourth Proportional to 216,802.69, 299,152.03 and 136,172.79

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Solution

The fourth proportional to 216,802.69, 299,152.03 and 136,172.79 is: 187,896.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,802.69 : 299,152.03 = 136,172.79 : x
  2. Step 2: Convert to fraction form
    216,802.69/299,152.03 = 136,172.79/x
  3. Step 3: Cross multiply
    216,802.69x = 299,152.03 × 136,172.79
  4. Step 4: Simplify right side
    216,802.69x = 40,736,366,559.26
  5. Step 5: Solve for x
    x = 40,736,366,559.26/216,802.69
  6. Step 6: Final answer
    x = 187,896.04

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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.