Home / 347,917.18-521,711.28-134,784.94

Finding the Fourth Proportional to 347,917.18, 521,711.28 and 134,784.94

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Solution

The fourth proportional to 347,917.18, 521,711.28 and 134,784.94 is: 202,113.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,917.18 : 521,711.28 = 134,784.94 : x
  2. Step 2: Convert to fraction form
    347,917.18/521,711.28 = 134,784.94/x
  3. Step 3: Cross multiply
    347,917.18x = 521,711.28 × 134,784.94
  4. Step 4: Simplify right side
    347,917.18x = 70,318,823,572.12
  5. Step 5: Solve for x
    x = 70,318,823,572.12/347,917.18
  6. Step 6: Final answer
    x = 202,113.69

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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.