Home / 219,857.55-328,749.53-163,870.35

Finding the Fourth Proportional to 219,857.55, 328,749.53 and 163,870.35

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Solution

The fourth proportional to 219,857.55, 328,749.53 and 163,870.35 is: 245,032.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,857.55 : 328,749.53 = 163,870.35 : x
  2. Step 2: Convert to fraction form
    219,857.55/328,749.53 = 163,870.35/x
  3. Step 3: Cross multiply
    219,857.55x = 328,749.53 × 163,870.35
  4. Step 4: Simplify right side
    219,857.55x = 53,872,299,724.08
  5. Step 5: Solve for x
    x = 53,872,299,724.08/219,857.55
  6. Step 6: Final answer
    x = 245,032.75

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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.