Home / 440,989.18-661,421.51-141,430.87

Finding the Fourth Proportional to 440,989.18, 661,421.51 and 141,430.87

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Solution

The fourth proportional to 440,989.18, 661,421.51 and 141,430.87 is: 212,126.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,989.18 : 661,421.51 = 141,430.87 : x
  2. Step 2: Convert to fraction form
    440,989.18/661,421.51 = 141,430.87/x
  3. Step 3: Cross multiply
    440,989.18x = 661,421.51 × 141,430.87
  4. Step 4: Simplify right side
    440,989.18x = 93,545,420,246.00
  5. Step 5: Solve for x
    x = 93,545,420,246.00/440,989.18
  6. Step 6: Final answer
    x = 212,126.34

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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.