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Finding the Fourth Proportional to 240,038.30, 359,804.70 and 80,071.40

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Solution

The fourth proportional to 240,038.30, 359,804.70 and 80,071.40 is: 120,022.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,038.30 : 359,804.70 = 80,071.40 : x
  2. Step 2: Convert to fraction form
    240,038.30/359,804.70 = 80,071.40/x
  3. Step 3: Cross multiply
    240,038.30x = 359,804.70 × 80,071.40
  4. Step 4: Simplify right side
    240,038.30x = 28,810,066,955.09
  5. Step 5: Solve for x
    x = 28,810,066,955.09/240,038.30
  6. Step 6: Final answer
    x = 120,022.79

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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.