Home / 201,715.10-302,572.65-145,727.90

Finding the Fourth Proportional to 201,715.10, 302,572.65 and 145,727.90

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Solution

The fourth proportional to 201,715.10, 302,572.65 and 145,727.90 is: 218,591.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,715.10 : 302,572.65 = 145,727.90 : x
  2. Step 2: Convert to fraction form
    201,715.10/302,572.65 = 145,727.90/x
  3. Step 3: Cross multiply
    201,715.10x = 302,572.65 × 145,727.90
  4. Step 4: Simplify right side
    201,715.10x = 44,093,276,881.94
  5. Step 5: Solve for x
    x = 44,093,276,881.94/201,715.10
  6. Step 6: Final answer
    x = 218,591.85

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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.