Home / 424,743.36-636,918.72-158,432.64

Finding the Fourth Proportional to 424,743.36, 636,918.72 and 158,432.64

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Solution

The fourth proportional to 424,743.36, 636,918.72 and 158,432.64 is: 237,575.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,743.36 : 636,918.72 = 158,432.64 : x
  2. Step 2: Convert to fraction form
    424,743.36/636,918.72 = 158,432.64/x
  3. Step 3: Cross multiply
    424,743.36x = 636,918.72 × 158,432.64
  4. Step 4: Simplify right side
    424,743.36x = 100,908,714,275.02
  5. Step 5: Solve for x
    x = 100,908,714,275.02/424,743.36
  6. Step 6: Final answer
    x = 237,575.73

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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.