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Finding the Fourth Proportional to 340,465.66, 469,684.71 and 219,645.72

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Solution

The fourth proportional to 340,465.66, 469,684.71 and 219,645.72 is: 303,009.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,465.66 : 469,684.71 = 219,645.72 : x
  2. Step 2: Convert to fraction form
    340,465.66/469,684.71 = 219,645.72/x
  3. Step 3: Cross multiply
    340,465.66x = 469,684.71 × 219,645.72
  4. Step 4: Simplify right side
    340,465.66x = 103,164,236,300.94
  5. Step 5: Solve for x
    x = 103,164,236,300.94/340,465.66
  6. Step 6: Final answer
    x = 303,009.23

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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.