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Finding the Fourth Proportional to 312,050, 430,630.08 and 168,810.72

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Solution

The fourth proportional to 312,050, 430,630.08 and 168,810.72 is: 232,959.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,050 : 430,630.08 = 168,810.72 : x
  2. Step 2: Convert to fraction form
    312,050/430,630.08 = 168,810.72/x
  3. Step 3: Cross multiply
    312,050x = 430,630.08 × 168,810.72
  4. Step 4: Simplify right side
    312,050x = 72,694,973,858.46
  5. Step 5: Solve for x
    x = 72,694,973,858.46/312,050
  6. Step 6: Final answer
    x = 232,959.38

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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.