Home / 380,292.12-570,394.98-99,831.24

Finding the Fourth Proportional to 380,292.12, 570,394.98 and 99,831.24

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Solution

The fourth proportional to 380,292.12, 570,394.98 and 99,831.24 is: 149,735.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,292.12 : 570,394.98 = 99,831.24 : x
  2. Step 2: Convert to fraction form
    380,292.12/570,394.98 = 99,831.24/x
  3. Step 3: Cross multiply
    380,292.12x = 570,394.98 × 99,831.24
  4. Step 4: Simplify right side
    380,292.12x = 56,943,238,143.18
  5. Step 5: Solve for x
    x = 56,943,238,143.18/380,292.12
  6. Step 6: Final answer
    x = 149,735.52

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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.