Home / 219,129.40-328,502.10-148,780.60

Finding the Fourth Proportional to 219,129.40, 328,502.10 and 148,780.60

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Solution

The fourth proportional to 219,129.40, 328,502.10 and 148,780.60 is: 223,040.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,129.40 : 328,502.10 = 148,780.60 : x
  2. Step 2: Convert to fraction form
    219,129.40/328,502.10 = 148,780.60/x
  3. Step 3: Cross multiply
    219,129.40x = 328,502.10 × 148,780.60
  4. Step 4: Simplify right side
    219,129.40x = 48,874,739,539.26
  5. Step 5: Solve for x
    x = 48,874,739,539.26/219,129.40
  6. Step 6: Final answer
    x = 223,040.54

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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.