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Finding the Fourth Proportional to 230,047.08, 317,457.19 and 129,425.64

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Solution

The fourth proportional to 230,047.08, 317,457.19 and 129,425.64 is: 178,603.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,047.08 : 317,457.19 = 129,425.64 : x
  2. Step 2: Convert to fraction form
    230,047.08/317,457.19 = 129,425.64/x
  3. Step 3: Cross multiply
    230,047.08x = 317,457.19 × 129,425.64
  4. Step 4: Simplify right side
    230,047.08x = 41,087,099,988.35
  5. Step 5: Solve for x
    x = 41,087,099,988.35/230,047.08
  6. Step 6: Final answer
    x = 178,603.01

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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.