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Finding the Fourth Proportional to 424,662.60, 636,993.90 and 154,810.98

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Solution

The fourth proportional to 424,662.60, 636,993.90 and 154,810.98 is: 232,216.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,662.60 : 636,993.90 = 154,810.98 : x
  2. Step 2: Convert to fraction form
    424,662.60/636,993.90 = 154,810.98/x
  3. Step 3: Cross multiply
    424,662.60x = 636,993.90 × 154,810.98
  4. Step 4: Simplify right side
    424,662.60x = 98,613,649,913.02
  5. Step 5: Solve for x
    x = 98,613,649,913.02/424,662.60
  6. Step 6: Final answer
    x = 232,216.47

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1.5x scale

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.