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Finding the Fourth Proportional to 286,748.51, 430,174.70 and 118,175.00

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Solution

The fourth proportional to 286,748.51, 430,174.70 and 118,175.00 is: 177,283.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,748.51 : 430,174.70 = 118,175.00 : x
  2. Step 2: Convert to fraction form
    286,748.51/430,174.70 = 118,175.00/x
  3. Step 3: Cross multiply
    286,748.51x = 430,174.70 × 118,175.00
  4. Step 4: Simplify right side
    286,748.51x = 50,835,895,293.64
  5. Step 5: Solve for x
    x = 50,835,895,293.64/286,748.51
  6. Step 6: Final answer
    x = 177,283.91

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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.