Home / 347,864.20-521,018.70-340,088.20

Finding the Fourth Proportional to 347,864.20, 521,018.70 and 340,088.20

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Solution

The fourth proportional to 347,864.20, 521,018.70 and 340,088.20 is: 509,372.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,864.20 : 521,018.70 = 340,088.20 : x
  2. Step 2: Convert to fraction form
    347,864.20/521,018.70 = 340,088.20/x
  3. Step 3: Cross multiply
    347,864.20x = 521,018.70 × 340,088.20
  4. Step 4: Simplify right side
    347,864.20x = 177,192,311,849.34
  5. Step 5: Solve for x
    x = 177,192,311,849.34/347,864.20
  6. Step 6: Final answer
    x = 509,372.08

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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.