Home / 347,976.24-521,964.40-85,320.24

Finding the Fourth Proportional to 347,976.24, 521,964.40 and 85,320.24

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Solution

The fourth proportional to 347,976.24, 521,964.40 and 85,320.24 is: 127,980.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,976.24 : 521,964.40 = 85,320.24 : x
  2. Step 2: Convert to fraction form
    347,976.24/521,964.40 = 85,320.24/x
  3. Step 3: Cross multiply
    347,976.24x = 521,964.40 × 85,320.24
  4. Step 4: Simplify right side
    347,976.24x = 44,534,127,879.46
  5. Step 5: Solve for x
    x = 44,534,127,879.46/347,976.24
  6. Step 6: Final answer
    x = 127,980.37

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1.5x scale

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.