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Finding the Fourth Proportional to 347,677.40, 521,516.10 and 339,901.40

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Solution

The fourth proportional to 347,677.40, 521,516.10 and 339,901.40 is: 509,852.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,677.40 : 521,516.10 = 339,901.40 : x
  2. Step 2: Convert to fraction form
    347,677.40/521,516.10 = 339,901.40/x
  3. Step 3: Cross multiply
    347,677.40x = 521,516.10 × 339,901.40
  4. Step 4: Simplify right side
    347,677.40x = 177,264,052,512.54
  5. Step 5: Solve for x
    x = 177,264,052,512.54/347,677.40
  6. Step 6: Final answer
    x = 509,852.10

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1.5x scale

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.