Home / 318,140.19-477,199.35-81,484.92

Finding the Fourth Proportional to 318,140.19, 477,199.35 and 81,484.92

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Solution

The fourth proportional to 318,140.19, 477,199.35 and 81,484.92 is: 122,224.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,140.19 : 477,199.35 = 81,484.92 : x
  2. Step 2: Convert to fraction form
    318,140.19/477,199.35 = 81,484.92/x
  3. Step 3: Cross multiply
    318,140.19x = 477,199.35 × 81,484.92
  4. Step 4: Simplify right side
    318,140.19x = 38,884,550,858.80
  5. Step 5: Solve for x
    x = 38,884,550,858.80/318,140.19
  6. Step 6: Final answer
    x = 122,224.58

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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.