Home / 257,320.53-385,962.30-79,822.94

Finding the Fourth Proportional to 257,320.53, 385,962.30 and 79,822.94

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Solution

The fourth proportional to 257,320.53, 385,962.30 and 79,822.94 is: 119,728.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,320.53 : 385,962.30 = 79,822.94 : x
  2. Step 2: Convert to fraction form
    257,320.53/385,962.30 = 79,822.94/x
  3. Step 3: Cross multiply
    257,320.53x = 385,962.30 × 79,822.94
  4. Step 4: Simplify right side
    257,320.53x = 30,808,643,585.35
  5. Step 5: Solve for x
    x = 30,808,643,585.35/257,320.53
  6. Step 6: Final answer
    x = 119,728.67

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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.