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Finding the Fourth Proportional to 347,021.40, 520,532.10 and 97,703.40

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Solution

The fourth proportional to 347,021.40, 520,532.10 and 97,703.40 is: 146,555.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,021.40 : 520,532.10 = 97,703.40 : x
  2. Step 2: Convert to fraction form
    347,021.40/520,532.10 = 97,703.40/x
  3. Step 3: Cross multiply
    347,021.40x = 520,532.10 × 97,703.40
  4. Step 4: Simplify right side
    347,021.40x = 50,857,755,979.14
  5. Step 5: Solve for x
    x = 50,857,755,979.14/347,021.40
  6. Step 6: Final answer
    x = 146,555.10

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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.