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Finding the Fourth Proportional to 330,155.76, 495,430.38 and 119,810.10

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Solution

The fourth proportional to 330,155.76, 495,430.38 and 119,810.10 is: 179,786.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,155.76 : 495,430.38 = 119,810.10 : x
  2. Step 2: Convert to fraction form
    330,155.76/495,430.38 = 119,810.10/x
  3. Step 3: Cross multiply
    330,155.76x = 495,430.38 × 119,810.10
  4. Step 4: Simplify right side
    330,155.76x = 59,357,563,370.84
  5. Step 5: Solve for x
    x = 59,357,563,370.84/330,155.76
  6. Step 6: Final answer
    x = 179,786.54

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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.