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Finding the Fourth Proportional to 255,038.88, 382,158.40 and 161,346.72

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Solution

The fourth proportional to 255,038.88, 382,158.40 and 161,346.72 is: 241,767.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,038.88 : 382,158.40 = 161,346.72 : x
  2. Step 2: Convert to fraction form
    255,038.88/382,158.40 = 161,346.72/x
  3. Step 3: Cross multiply
    255,038.88x = 382,158.40 × 161,346.72
  4. Step 4: Simplify right side
    255,038.88x = 61,660,004,360.45
  5. Step 5: Solve for x
    x = 61,660,004,360.45/255,038.88
  6. Step 6: Final answer
    x = 241,767.08

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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.