Home / 312,307.11-430,985.21-169,067.16

Finding the Fourth Proportional to 312,307.11, 430,985.21 and 169,067.16

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Solution

The fourth proportional to 312,307.11, 430,985.21 and 169,067.16 is: 233,313.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,307.11 : 430,985.21 = 169,067.16 : x
  2. Step 2: Convert to fraction form
    312,307.11/430,985.21 = 169,067.16/x
  3. Step 3: Cross multiply
    312,307.11x = 430,985.21 × 169,067.16
  4. Step 4: Simplify right side
    312,307.11x = 72,865,444,580.18
  5. Step 5: Solve for x
    x = 72,865,444,580.18/312,307.11
  6. Step 6: Final answer
    x = 233,313.43

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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.