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Finding the Fourth Proportional to 330,466.66, 495,710.69 and 157,320.79

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Solution

The fourth proportional to 330,466.66, 495,710.69 and 157,320.79 is: 235,986.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,466.66 : 495,710.69 = 157,320.79 : x
  2. Step 2: Convert to fraction form
    330,466.66/495,710.69 = 157,320.79/x
  3. Step 3: Cross multiply
    330,466.66x = 495,710.69 × 157,320.79
  4. Step 4: Simplify right side
    330,466.66x = 77,985,595,336.36
  5. Step 5: Solve for x
    x = 77,985,595,336.36/330,466.66
  6. Step 6: Final answer
    x = 235,986.27

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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.