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Finding the Fourth Proportional to 254,471.40, 381,925.80 and 112,535.10

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Solution

The fourth proportional to 254,471.40, 381,925.80 and 112,535.10 is: 168,899.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,471.40 : 381,925.80 = 112,535.10 : x
  2. Step 2: Convert to fraction form
    254,471.40/381,925.80 = 112,535.10/x
  3. Step 3: Cross multiply
    254,471.40x = 381,925.80 × 112,535.10
  4. Step 4: Simplify right side
    254,471.40x = 42,980,058,095.58
  5. Step 5: Solve for x
    x = 42,980,058,095.58/254,471.40
  6. Step 6: Final answer
    x = 168,899.37

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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.