Home / 440,130.60-660,633.30-215,744.40

Finding the Fourth Proportional to 440,130.60, 660,633.30 and 215,744.40

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Solution

The fourth proportional to 440,130.60, 660,633.30 and 215,744.40 is: 323,831.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,130.60 : 660,633.30 = 215,744.40 : x
  2. Step 2: Convert to fraction form
    440,130.60/660,633.30 = 215,744.40/x
  3. Step 3: Cross multiply
    440,130.60x = 660,633.30 × 215,744.40
  4. Step 4: Simplify right side
    440,130.60x = 142,527,934,928.52
  5. Step 5: Solve for x
    x = 142,527,934,928.52/440,130.60
  6. Step 6: Final answer
    x = 323,831.01

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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.