Home / 257,035.20-385,355.04-130,571.52

Finding the Fourth Proportional to 257,035.20, 385,355.04 and 130,571.52

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Solution

The fourth proportional to 257,035.20, 385,355.04 and 130,571.52 is: 195,756.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,035.20 : 385,355.04 = 130,571.52 : x
  2. Step 2: Convert to fraction form
    257,035.20/385,355.04 = 130,571.52/x
  3. Step 3: Cross multiply
    257,035.20x = 385,355.04 × 130,571.52
  4. Step 4: Simplify right side
    257,035.20x = 50,316,393,312.46
  5. Step 5: Solve for x
    x = 50,316,393,312.46/257,035.20
  6. Step 6: Final answer
    x = 195,756.82

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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.