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Finding the Fourth Proportional to 380,393.40, 570,888.16 and 167,309.40

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Solution

The fourth proportional to 380,393.40, 570,888.16 and 167,309.40 is: 251,095.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,393.40 : 570,888.16 = 167,309.40 : x
  2. Step 2: Convert to fraction form
    380,393.40/570,888.16 = 167,309.40/x
  3. Step 3: Cross multiply
    380,393.40x = 570,888.16 × 167,309.40
  4. Step 4: Simplify right side
    380,393.40x = 95,514,955,516.70
  5. Step 5: Solve for x
    x = 95,514,955,516.70/380,393.40
  6. Step 6: Final answer
    x = 251,095.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.