Home / 330,764.61-456,459.71-247,831.75

Finding the Fourth Proportional to 330,764.61, 456,459.71 and 247,831.75

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Solution

The fourth proportional to 330,764.61, 456,459.71 and 247,831.75 is: 342,011.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,764.61 : 456,459.71 = 247,831.75 : x
  2. Step 2: Convert to fraction form
    330,764.61/456,459.71 = 247,831.75/x
  3. Step 3: Cross multiply
    330,764.61x = 456,459.71 × 247,831.75
  4. Step 4: Simplify right side
    330,764.61x = 113,125,208,065.21
  5. Step 5: Solve for x
    x = 113,125,208,065.21/330,764.61
  6. Step 6: Final answer
    x = 342,011.22

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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.