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Finding the Fourth Proportional to 188,730.64, 260,450.10 and 103,849.51

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Solution

The fourth proportional to 188,730.64, 260,450.10 and 103,849.51 is: 143,313.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,730.64 : 260,450.10 = 103,849.51 : x
  2. Step 2: Convert to fraction form
    188,730.64/260,450.10 = 103,849.51/x
  3. Step 3: Cross multiply
    188,730.64x = 260,450.10 × 103,849.51
  4. Step 4: Simplify right side
    188,730.64x = 27,047,615,264.45
  5. Step 5: Solve for x
    x = 27,047,615,264.45/188,730.64
  6. Step 6: Final answer
    x = 143,313.32

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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.