Home / 228,376.13-315,159.67-126,408.61

Finding the Fourth Proportional to 228,376.13, 315,159.67 and 126,408.61

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Solution

The fourth proportional to 228,376.13, 315,159.67 and 126,408.61 is: 174,444.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,376.13 : 315,159.67 = 126,408.61 : x
  2. Step 2: Convert to fraction form
    228,376.13/315,159.67 = 126,408.61/x
  3. Step 3: Cross multiply
    228,376.13x = 315,159.67 × 126,408.61
  4. Step 4: Simplify right side
    228,376.13x = 39,838,896,364.72
  5. Step 5: Solve for x
    x = 39,838,896,364.72/228,376.13
  6. Step 6: Final answer
    x = 174,444.23

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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.