Home / 425,848.40-638,747.36-159,586.64

Finding the Fourth Proportional to 425,848.40, 638,747.36 and 159,586.64

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Solution

The fourth proportional to 425,848.40, 638,747.36 and 159,586.64 is: 239,370.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,848.40 : 638,747.36 = 159,586.64 : x
  2. Step 2: Convert to fraction form
    425,848.40/638,747.36 = 159,586.64/x
  3. Step 3: Cross multiply
    425,848.40x = 638,747.36 × 159,586.64
  4. Step 4: Simplify right side
    425,848.40x = 101,935,544,991.27
  5. Step 5: Solve for x
    x = 101,935,544,991.27/425,848.40
  6. Step 6: Final answer
    x = 239,370.50

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1.5x scale

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.