Home / 347,721.60-521,428.80-160,790.40

Finding the Fourth Proportional to 347,721.60, 521,428.80 and 160,790.40

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Solution

The fourth proportional to 347,721.60, 521,428.80 and 160,790.40 is: 241,114.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,721.60 : 521,428.80 = 160,790.40 : x
  2. Step 2: Convert to fraction form
    347,721.60/521,428.80 = 160,790.40/x
  3. Step 3: Cross multiply
    347,721.60x = 521,428.80 × 160,790.40
  4. Step 4: Simplify right side
    347,721.60x = 83,840,745,323.52
  5. Step 5: Solve for x
    x = 83,840,745,323.52/347,721.60
  6. Step 6: Final answer
    x = 241,114.57

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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.