Home / 285,890.52-428,746.29-103,498.31

Finding the Fourth Proportional to 285,890.52, 428,746.29 and 103,498.31

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Solution

The fourth proportional to 285,890.52, 428,746.29 and 103,498.31 is: 155,215.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,890.52 : 428,746.29 = 103,498.31 : x
  2. Step 2: Convert to fraction form
    285,890.52/428,746.29 = 103,498.31/x
  3. Step 3: Cross multiply
    285,890.52x = 428,746.29 × 103,498.31
  4. Step 4: Simplify right side
    285,890.52x = 44,374,516,433.77
  5. Step 5: Solve for x
    x = 44,374,516,433.77/285,890.52
  6. Step 6: Final answer
    x = 155,215.07

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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.