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Finding the Fourth Proportional to 243,759.56, 336,327.54 and 153,130.28

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Solution

The fourth proportional to 243,759.56, 336,327.54 and 153,130.28 is: 211,281.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,759.56 : 336,327.54 = 153,130.28 : x
  2. Step 2: Convert to fraction form
    243,759.56/336,327.54 = 153,130.28/x
  3. Step 3: Cross multiply
    243,759.56x = 336,327.54 × 153,130.28
  4. Step 4: Simplify right side
    243,759.56x = 51,501,930,371.91
  5. Step 5: Solve for x
    x = 51,501,930,371.91/243,759.56
  6. Step 6: Final answer
    x = 211,281.68

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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.