Home / 215,962.28-298,009.30-139,484.76

Finding the Fourth Proportional to 215,962.28, 298,009.30 and 139,484.76

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Solution

The fourth proportional to 215,962.28, 298,009.30 and 139,484.76 is: 192,476.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,962.28 : 298,009.30 = 139,484.76 : x
  2. Step 2: Convert to fraction form
    215,962.28/298,009.30 = 139,484.76/x
  3. Step 3: Cross multiply
    215,962.28x = 298,009.30 × 139,484.76
  4. Step 4: Simplify right side
    215,962.28x = 41,567,755,688.27
  5. Step 5: Solve for x
    x = 41,567,755,688.27/215,962.28
  6. Step 6: Final answer
    x = 192,476.93

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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.