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Finding the Fourth Proportional to 342,893.70, 514,340.55 and 223,920.90

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Solution

The fourth proportional to 342,893.70, 514,340.55 and 223,920.90 is: 335,881.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,893.70 : 514,340.55 = 223,920.90 : x
  2. Step 2: Convert to fraction form
    342,893.70/514,340.55 = 223,920.90/x
  3. Step 3: Cross multiply
    342,893.70x = 514,340.55 × 223,920.90
  4. Step 4: Simplify right side
    342,893.70x = 115,171,598,862.50
  5. Step 5: Solve for x
    x = 115,171,598,862.50/342,893.70
  6. Step 6: Final answer
    x = 335,881.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.