Home / 219,877.43-303,620.23-138,341.63

Finding the Fourth Proportional to 219,877.43, 303,620.23 and 138,341.63

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Solution

The fourth proportional to 219,877.43, 303,620.23 and 138,341.63 is: 191,030.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,877.43 : 303,620.23 = 138,341.63 : x
  2. Step 2: Convert to fraction form
    219,877.43/303,620.23 = 138,341.63/x
  3. Step 3: Cross multiply
    219,877.43x = 303,620.23 × 138,341.63
  4. Step 4: Simplify right side
    219,877.43x = 42,003,317,519.17
  5. Step 5: Solve for x
    x = 42,003,317,519.17/219,877.43
  6. Step 6: Final answer
    x = 191,030.60

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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.