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Finding the Fourth Proportional to 440,970.56, 661,130.22 and 141,277.76

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Solution

The fourth proportional to 440,970.56, 661,130.22 and 141,277.76 is: 211,812.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,970.56 : 661,130.22 = 141,277.76 : x
  2. Step 2: Convert to fraction form
    440,970.56/661,130.22 = 141,277.76/x
  3. Step 3: Cross multiply
    440,970.56x = 661,130.22 × 141,277.76
  4. Step 4: Simplify right side
    440,970.56x = 93,402,996,549.91
  5. Step 5: Solve for x
    x = 93,402,996,549.91/440,970.56
  6. Step 6: Final answer
    x = 211,812.32

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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.