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Finding the Fourth Proportional to 472,130.85, 708,195.40 and 147,943.77

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Solution

The fourth proportional to 472,130.85, 708,195.40 and 147,943.77 is: 221,915.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,130.85 : 708,195.40 = 147,943.77 : x
  2. Step 2: Convert to fraction form
    472,130.85/708,195.40 = 147,943.77/x
  3. Step 3: Cross multiply
    472,130.85x = 708,195.40 × 147,943.77
  4. Step 4: Simplify right side
    472,130.85x = 104,773,097,002.80
  5. Step 5: Solve for x
    x = 104,773,097,002.80/472,130.85
  6. Step 6: Final answer
    x = 221,915.38

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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.