Home / 400,823.56-553,129.14-231,064.84

Finding the Fourth Proportional to 400,823.56, 553,129.14 and 231,064.84

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Solution

The fourth proportional to 400,823.56, 553,129.14 and 231,064.84 is: 318,865.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,823.56 : 553,129.14 = 231,064.84 : x
  2. Step 2: Convert to fraction form
    400,823.56/553,129.14 = 231,064.84/x
  3. Step 3: Cross multiply
    400,823.56x = 553,129.14 × 231,064.84
  4. Step 4: Simplify right side
    400,823.56x = 127,808,696,233.44
  5. Step 5: Solve for x
    x = 127,808,696,233.44/400,823.56
  6. Step 6: Final answer
    x = 318,865.23

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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.