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Finding the Fourth Proportional to 189,045.98, 260,889.34 and 108,488.24

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Solution

The fourth proportional to 189,045.98, 260,889.34 and 108,488.24 is: 149,717.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,045.98 : 260,889.34 = 108,488.24 : x
  2. Step 2: Convert to fraction form
    189,045.98/260,889.34 = 108,488.24/x
  3. Step 3: Cross multiply
    189,045.98x = 260,889.34 × 108,488.24
  4. Step 4: Simplify right side
    189,045.98x = 28,303,425,331.36
  5. Step 5: Solve for x
    x = 28,303,425,331.36/189,045.98
  6. Step 6: Final answer
    x = 149,717.15

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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.