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Finding the Fourth Proportional to 347,746.40, 521,198.40 and 147,646.70

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Solution

The fourth proportional to 347,746.40, 521,198.40 and 147,646.70 is: 221,291.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,746.40 : 521,198.40 = 147,646.70 : x
  2. Step 2: Convert to fraction form
    347,746.40/521,198.40 = 147,646.70/x
  3. Step 3: Cross multiply
    347,746.40x = 521,198.40 × 147,646.70
  4. Step 4: Simplify right side
    347,746.40x = 76,953,223,805.28
  5. Step 5: Solve for x
    x = 76,953,223,805.28/347,746.40
  6. Step 6: Final answer
    x = 221,291.22

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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.