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Finding the Fourth Proportional to 401,760.36, 554,291.98 and 229,554.77

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Solution

The fourth proportional to 401,760.36, 554,291.98 and 229,554.77 is: 316,707.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,760.36 : 554,291.98 = 229,554.77 : x
  2. Step 2: Convert to fraction form
    401,760.36/554,291.98 = 229,554.77/x
  3. Step 3: Cross multiply
    401,760.36x = 554,291.98 × 229,554.77
  4. Step 4: Simplify right side
    401,760.36x = 127,240,364,636.40
  5. Step 5: Solve for x
    x = 127,240,364,636.40/401,760.36
  6. Step 6: Final answer
    x = 316,707.12

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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.