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Finding the Fourth Proportional to 340,352.94, 469,678.83 and 213,098.70

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Solution

The fourth proportional to 340,352.94, 469,678.83 and 213,098.70 is: 294,071.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,352.94 : 469,678.83 = 213,098.70 : x
  2. Step 2: Convert to fraction form
    340,352.94/469,678.83 = 213,098.70/x
  3. Step 3: Cross multiply
    340,352.94x = 469,678.83 × 213,098.70
  4. Step 4: Simplify right side
    340,352.94x = 100,087,948,090.52
  5. Step 5: Solve for x
    x = 100,087,948,090.52/340,352.94
  6. Step 6: Final answer
    x = 294,071.05

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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.