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Finding the Fourth Proportional to 424,701.36, 636,607.80 and 158,346

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Solution

The fourth proportional to 424,701.36, 636,607.80 and 158,346 is: 237,353.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,701.36 : 636,607.80 = 158,346 : x
  2. Step 2: Convert to fraction form
    424,701.36/636,607.80 = 158,346/x
  3. Step 3: Cross multiply
    424,701.36x = 636,607.80 × 158,346
  4. Step 4: Simplify right side
    424,701.36x = 100,804,298,698.80
  5. Step 5: Solve for x
    x = 100,804,298,698.80/424,701.36
  6. Step 6: Final answer
    x = 237,353.37

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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.