Home / 219,471.90-328,688.85-187,087.22

Finding the Fourth Proportional to 219,471.90, 328,688.85 and 187,087.22

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Solution

The fourth proportional to 219,471.90, 328,688.85 and 187,087.22 is: 280,188.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,471.90 : 328,688.85 = 187,087.22 : x
  2. Step 2: Convert to fraction form
    219,471.90/328,688.85 = 187,087.22/x
  3. Step 3: Cross multiply
    219,471.90x = 328,688.85 × 187,087.22
  4. Step 4: Simplify right side
    219,471.90x = 61,493,483,482.21
  5. Step 5: Solve for x
    x = 61,493,483,482.21/219,471.90
  6. Step 6: Final answer
    x = 280,188.42

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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.