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Finding the Fourth Proportional to 239,485.52, 330,477.90 and 136,117.01

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Solution

The fourth proportional to 239,485.52, 330,477.90 and 136,117.01 is: 187,834.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,485.52 : 330,477.90 = 136,117.01 : x
  2. Step 2: Convert to fraction form
    239,485.52/330,477.90 = 136,117.01/x
  3. Step 3: Cross multiply
    239,485.52x = 330,477.90 × 136,117.01
  4. Step 4: Simplify right side
    239,485.52x = 44,983,664,165.67
  5. Step 5: Solve for x
    x = 44,983,664,165.67/239,485.52
  6. Step 6: Final answer
    x = 187,834.59

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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.