Home / 347,913.20-521,927.40-148,329.20

Finding the Fourth Proportional to 347,913.20, 521,927.40 and 148,329.20

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Solution

The fourth proportional to 347,913.20, 521,927.40 and 148,329.20 is: 222,518.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,913.20 : 521,927.40 = 148,329.20 : x
  2. Step 2: Convert to fraction form
    347,913.20/521,927.40 = 148,329.20/x
  3. Step 3: Cross multiply
    347,913.20x = 521,927.40 × 148,329.20
  4. Step 4: Simplify right side
    347,913.20x = 77,417,073,700.08
  5. Step 5: Solve for x
    x = 77,417,073,700.08/347,913.20
  6. Step 6: Final answer
    x = 222,518.36

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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.