Home / 347,050.06-478,831.98-218,002.48

Finding the Fourth Proportional to 347,050.06, 478,831.98 and 218,002.48

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Solution

The fourth proportional to 347,050.06, 478,831.98 and 218,002.48 is: 300,782.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,050.06 : 478,831.98 = 218,002.48 : x
  2. Step 2: Convert to fraction form
    347,050.06/478,831.98 = 218,002.48/x
  3. Step 3: Cross multiply
    347,050.06x = 478,831.98 × 218,002.48
  4. Step 4: Simplify right side
    347,050.06x = 104,386,559,143.31
  5. Step 5: Solve for x
    x = 104,386,559,143.31/347,050.06
  6. Step 6: Final answer
    x = 300,782.43

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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.