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Finding the Fourth Proportional to 258,179.42, 356,248.95 and 144,980.30

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Solution

The fourth proportional to 258,179.42, 356,248.95 and 144,980.30 is: 200,051.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,179.42 : 356,248.95 = 144,980.30 : x
  2. Step 2: Convert to fraction form
    258,179.42/356,248.95 = 144,980.30/x
  3. Step 3: Cross multiply
    258,179.42x = 356,248.95 × 144,980.30
  4. Step 4: Simplify right side
    258,179.42x = 51,649,079,645.69
  5. Step 5: Solve for x
    x = 51,649,079,645.69/258,179.42
  6. Step 6: Final answer
    x = 200,051.11

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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.