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Finding the Fourth Proportional to 216,903.50, 299,284.28 and 136,284.32

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Solution

The fourth proportional to 216,903.50, 299,284.28 and 136,284.32 is: 188,045.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,903.50 : 299,284.28 = 136,284.32 : x
  2. Step 2: Convert to fraction form
    216,903.50/299,284.28 = 136,284.32/x
  3. Step 3: Cross multiply
    216,903.50x = 299,284.28 × 136,284.32
  4. Step 4: Simplify right side
    216,903.50x = 40,787,754,586.49
  5. Step 5: Solve for x
    x = 40,787,754,586.49/216,903.50
  6. Step 6: Final answer
    x = 188,045.63

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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.