Home / 287,020.70-430,536.33-124,898.39

Finding the Fourth Proportional to 287,020.70, 430,536.33 and 124,898.39

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Solution

The fourth proportional to 287,020.70, 430,536.33 and 124,898.39 is: 187,349.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,020.70 : 430,536.33 = 124,898.39 : x
  2. Step 2: Convert to fraction form
    287,020.70/430,536.33 = 124,898.39/x
  3. Step 3: Cross multiply
    287,020.70x = 430,536.33 × 124,898.39
  4. Step 4: Simplify right side
    287,020.70x = 53,773,294,453.51
  5. Step 5: Solve for x
    x = 53,773,294,453.51/287,020.70
  6. Step 6: Final answer
    x = 187,349.88

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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.