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Finding the Fourth Proportional to 239,258.76, 330,174.44 and 137,300.26

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Solution

The fourth proportional to 239,258.76, 330,174.44 and 137,300.26 is: 189,472.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,258.76 : 330,174.44 = 137,300.26 : x
  2. Step 2: Convert to fraction form
    239,258.76/330,174.44 = 137,300.26/x
  3. Step 3: Cross multiply
    239,258.76x = 330,174.44 × 137,300.26
  4. Step 4: Simplify right side
    239,258.76x = 45,333,036,457.35
  5. Step 5: Solve for x
    x = 45,333,036,457.35/239,258.76
  6. Step 6: Final answer
    x = 189,472.84

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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.