Home / 400,443.48-552,612.21-219,155.30

Finding the Fourth Proportional to 400,443.48, 552,612.21 and 219,155.30

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Solution

The fourth proportional to 400,443.48, 552,612.21 and 219,155.30 is: 302,434.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,443.48 : 552,612.21 = 219,155.30 : x
  2. Step 2: Convert to fraction form
    400,443.48/552,612.21 = 219,155.30/x
  3. Step 3: Cross multiply
    400,443.48x = 552,612.21 × 219,155.30
  4. Step 4: Simplify right side
    400,443.48x = 121,107,894,666.21
  5. Step 5: Solve for x
    x = 121,107,894,666.21/400,443.48
  6. Step 6: Final answer
    x = 302,434.43

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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.