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Finding the Fourth Proportional to 440,655, 660,980.88 and 125,111.94

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Solution

The fourth proportional to 440,655, 660,980.88 and 125,111.94 is: 187,667.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,655 : 660,980.88 = 125,111.94 : x
  2. Step 2: Convert to fraction form
    440,655/660,980.88 = 125,111.94/x
  3. Step 3: Cross multiply
    440,655x = 660,980.88 × 125,111.94
  4. Step 4: Simplify right side
    440,655x = 82,696,600,199.71
  5. Step 5: Solve for x
    x = 82,696,600,199.71/440,655
  6. Step 6: Final answer
    x = 187,667.45

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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.