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Finding the Fourth Proportional to 239,547.96, 330,563.94 and 137,502.54

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Solution

The fourth proportional to 239,547.96, 330,563.94 and 137,502.54 is: 189,746.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,547.96 : 330,563.94 = 137,502.54 : x
  2. Step 2: Convert to fraction form
    239,547.96/330,563.94 = 137,502.54/x
  3. Step 3: Cross multiply
    239,547.96x = 330,563.94 × 137,502.54
  4. Step 4: Simplify right side
    239,547.96x = 45,453,381,382.41
  5. Step 5: Solve for x
    x = 45,453,381,382.41/239,547.96
  6. Step 6: Final answer
    x = 189,746.48

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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.