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Finding the Fourth Proportional to 216,904.69, 299,325.54 and 121,411.36

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Solution

The fourth proportional to 216,904.69, 299,325.54 and 121,411.36 is: 167,546.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,904.69 : 299,325.54 = 121,411.36 : x
  2. Step 2: Convert to fraction form
    216,904.69/299,325.54 = 121,411.36/x
  3. Step 3: Cross multiply
    216,904.69x = 299,325.54 × 121,411.36
  4. Step 4: Simplify right side
    216,904.69x = 36,341,520,894.13
  5. Step 5: Solve for x
    x = 36,341,520,894.13/216,904.69
  6. Step 6: Final answer
    x = 167,546.04

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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.