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Finding the Fourth Proportional to 219,604.80, 302,826.72 and 187,878.72

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Solution

The fourth proportional to 219,604.80, 302,826.72 and 187,878.72 is: 259,077.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,604.80 : 302,826.72 = 187,878.72 : x
  2. Step 2: Convert to fraction form
    219,604.80/302,826.72 = 187,878.72/x
  3. Step 3: Cross multiply
    219,604.80x = 302,826.72 × 187,878.72
  4. Step 4: Simplify right side
    219,604.80x = 56,894,696,535.40
  5. Step 5: Solve for x
    x = 56,894,696,535.40/219,604.80
  6. Step 6: Final answer
    x = 259,077.65

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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.