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Finding the Fourth Proportional to 270,889.45, 373,830.19 and 163,438.72

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Solution

The fourth proportional to 270,889.45, 373,830.19 and 163,438.72 is: 225,547.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,889.45 : 373,830.19 = 163,438.72 : x
  2. Step 2: Convert to fraction form
    270,889.45/373,830.19 = 163,438.72/x
  3. Step 3: Cross multiply
    270,889.45x = 373,830.19 × 163,438.72
  4. Step 4: Simplify right side
    270,889.45x = 61,098,327,750.96
  5. Step 5: Solve for x
    x = 61,098,327,750.96/270,889.45
  6. Step 6: Final answer
    x = 225,547.09

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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.