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Finding the Fourth Proportional to 486,156.79, 670,816.13 and 271,296.34

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Solution

The fourth proportional to 486,156.79, 670,816.13 and 271,296.34 is: 374,344.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,156.79 : 670,816.13 = 271,296.34 : x
  2. Step 2: Convert to fraction form
    486,156.79/670,816.13 = 271,296.34/x
  3. Step 3: Cross multiply
    486,156.79x = 670,816.13 × 271,296.34
  4. Step 4: Simplify right side
    486,156.79x = 181,989,959,374.48
  5. Step 5: Solve for x
    x = 181,989,959,374.48/486,156.79
  6. Step 6: Final answer
    x = 374,344.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.