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Finding the Fourth Proportional to 290,361.91, 437,248.33 and 253,363.36

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Solution

The fourth proportional to 290,361.91, 437,248.33 and 253,363.36 is: 381,533.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,361.91 : 437,248.33 = 253,363.36 : x
  2. Step 2: Convert to fraction form
    290,361.91/437,248.33 = 253,363.36/x
  3. Step 3: Cross multiply
    290,361.91x = 437,248.33 × 253,363.36
  4. Step 4: Simplify right side
    290,361.91x = 110,782,706,043.19
  5. Step 5: Solve for x
    x = 110,782,706,043.19/290,361.91
  6. Step 6: Final answer
    x = 381,533.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.