Home / 219,157.90-328,462.43-117,706.65

Finding the Fourth Proportional to 219,157.90, 328,462.43 and 117,706.65

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Solution

The fourth proportional to 219,157.90, 328,462.43 and 117,706.65 is: 176,412.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,157.90 : 328,462.43 = 117,706.65 : x
  2. Step 2: Convert to fraction form
    219,157.90/328,462.43 = 117,706.65/x
  3. Step 3: Cross multiply
    219,157.90x = 328,462.43 × 117,706.65
  4. Step 4: Simplify right side
    219,157.90x = 38,662,211,543.48
  5. Step 5: Solve for x
    x = 38,662,211,543.48/219,157.90
  6. Step 6: Final answer
    x = 176,412.58

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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.