Home / 208,116.55-312,139.65-58,322.40

Finding the Fourth Proportional to 208,116.55, 312,139.65 and 58,322.40

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Solution

The fourth proportional to 208,116.55, 312,139.65 and 58,322.40 is: 87,473.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,116.55 : 312,139.65 = 58,322.40 : x
  2. Step 2: Convert to fraction form
    208,116.55/312,139.65 = 58,322.40/x
  3. Step 3: Cross multiply
    208,116.55x = 312,139.65 × 58,322.40
  4. Step 4: Simplify right side
    208,116.55x = 18,204,733,523.16
  5. Step 5: Solve for x
    x = 18,204,733,523.16/208,116.55
  6. Step 6: Final answer
    x = 87,473.74

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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.