Home / 310,321.07-428,242.43-174,358.52

Finding the Fourth Proportional to 310,321.07, 428,242.43 and 174,358.52

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Solution

The fourth proportional to 310,321.07, 428,242.43 and 174,358.52 is: 240,614.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,321.07 : 428,242.43 = 174,358.52 : x
  2. Step 2: Convert to fraction form
    310,321.07/428,242.43 = 174,358.52/x
  3. Step 3: Cross multiply
    310,321.07x = 428,242.43 × 174,358.52
  4. Step 4: Simplify right side
    310,321.07x = 74,667,715,215.83
  5. Step 5: Solve for x
    x = 74,667,715,215.83/310,321.07
  6. Step 6: Final answer
    x = 240,614.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.