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Finding the Fourth Proportional to 400,641.02, 552,882.74 and 216,879.69

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Solution

The fourth proportional to 400,641.02, 552,882.74 and 216,879.69 is: 299,292.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,641.02 : 552,882.74 = 216,879.69 : x
  2. Step 2: Convert to fraction form
    400,641.02/552,882.74 = 216,879.69/x
  3. Step 3: Cross multiply
    400,641.02x = 552,882.74 × 216,879.69
  4. Step 4: Simplify right side
    400,641.02x = 119,909,036,173.15
  5. Step 5: Solve for x
    x = 119,909,036,173.15/400,641.02
  6. Step 6: Final answer
    x = 299,292.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.