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Finding the Fourth Proportional to 279,260, 418,630.32 and 101,726.72

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Solution

The fourth proportional to 279,260, 418,630.32 and 101,726.72 is: 152,495.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,260 : 418,630.32 = 101,726.72 : x
  2. Step 2: Convert to fraction form
    279,260/418,630.32 = 101,726.72/x
  3. Step 3: Cross multiply
    279,260x = 418,630.32 × 101,726.72
  4. Step 4: Simplify right side
    279,260x = 42,585,889,346.15
  5. Step 5: Solve for x
    x = 42,585,889,346.15/279,260
  6. Step 6: Final answer
    x = 152,495.49

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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.