Home / 400,397.61-552,548.75-219,109.53

Finding the Fourth Proportional to 400,397.61, 552,548.75 and 219,109.53

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Solution

The fourth proportional to 400,397.61, 552,548.75 and 219,109.53 is: 302,371.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,397.61 : 552,548.75 = 219,109.53 : x
  2. Step 2: Convert to fraction form
    400,397.61/552,548.75 = 219,109.53/x
  3. Step 3: Cross multiply
    400,397.61x = 552,548.75 × 219,109.53
  4. Step 4: Simplify right side
    400,397.61x = 121,068,697,891.10
  5. Step 5: Solve for x
    x = 121,068,697,891.10/400,397.61
  6. Step 6: Final answer
    x = 302,371.18

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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.