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Finding the Fourth Proportional to 354,368.80, 530,961.47 and 248,999.14

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Solution

The fourth proportional to 354,368.80, 530,961.47 and 248,999.14 is: 373,082.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,368.80 : 530,961.47 = 248,999.14 : x
  2. Step 2: Convert to fraction form
    354,368.80/530,961.47 = 248,999.14/x
  3. Step 3: Cross multiply
    354,368.80x = 530,961.47 × 248,999.14
  4. Step 4: Simplify right side
    354,368.80x = 132,208,949,403.14
  5. Step 5: Solve for x
    x = 132,208,949,403.14/354,368.80
  6. Step 6: Final answer
    x = 373,082.93

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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.