Home / 316,128.75-474,527.33-308,989.57

Finding the Fourth Proportional to 316,128.75, 474,527.33 and 308,989.57

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Solution

The fourth proportional to 316,128.75, 474,527.33 and 308,989.57 is: 463,811.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,128.75 : 474,527.33 = 308,989.57 : x
  2. Step 2: Convert to fraction form
    316,128.75/474,527.33 = 308,989.57/x
  3. Step 3: Cross multiply
    316,128.75x = 474,527.33 × 308,989.57
  4. Step 4: Simplify right side
    316,128.75x = 146,623,995,649.95
  5. Step 5: Solve for x
    x = 146,623,995,649.95/316,128.75
  6. Step 6: Final answer
    x = 463,811.01

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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.