Home / 400,538.09-552,737.65-216,772.38

Finding the Fourth Proportional to 400,538.09, 552,737.65 and 216,772.38

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Solution

The fourth proportional to 400,538.09, 552,737.65 and 216,772.38 is: 299,143.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,538.09 : 552,737.65 = 216,772.38 : x
  2. Step 2: Convert to fraction form
    400,538.09/552,737.65 = 216,772.38/x
  3. Step 3: Cross multiply
    400,538.09x = 552,737.65 × 216,772.38
  4. Step 4: Simplify right side
    400,538.09x = 119,818,255,906.11
  5. Step 5: Solve for x
    x = 119,818,255,906.11/400,538.09
  6. Step 6: Final answer
    x = 299,143.22

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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.