Home / 305,337.12-458,047.32-105,603.96

Finding the Fourth Proportional to 305,337.12, 458,047.32 and 105,603.96

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Solution

The fourth proportional to 305,337.12, 458,047.32 and 105,603.96 is: 158,420.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,337.12 : 458,047.32 = 105,603.96 : x
  2. Step 2: Convert to fraction form
    305,337.12/458,047.32 = 105,603.96/x
  3. Step 3: Cross multiply
    305,337.12x = 458,047.32 × 105,603.96
  4. Step 4: Simplify right side
    305,337.12x = 48,371,610,859.39
  5. Step 5: Solve for x
    x = 48,371,610,859.39/305,337.12
  6. Step 6: Final answer
    x = 158,420.34

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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.