Home / 287,214.48-430,883.86-87,529.58

Finding the Fourth Proportional to 287,214.48, 430,883.86 and 87,529.58

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Solution

The fourth proportional to 287,214.48, 430,883.86 and 87,529.58 is: 131,313.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,214.48 : 430,883.86 = 87,529.58 : x
  2. Step 2: Convert to fraction form
    287,214.48/430,883.86 = 87,529.58/x
  3. Step 3: Cross multiply
    287,214.48x = 430,883.86 × 87,529.58
  4. Step 4: Simplify right side
    287,214.48x = 37,715,083,294.58
  5. Step 5: Solve for x
    x = 37,715,083,294.58/287,214.48
  6. Step 6: Final answer
    x = 131,313.31

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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.