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Finding the Fourth Proportional to 343,160.40, 514,178.82 and 330,038.40

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Solution

The fourth proportional to 343,160.40, 514,178.82 and 330,038.40 is: 494,517.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,160.40 : 514,178.82 = 330,038.40 : x
  2. Step 2: Convert to fraction form
    343,160.40/514,178.82 = 330,038.40/x
  3. Step 3: Cross multiply
    343,160.40x = 514,178.82 × 330,038.40
  4. Step 4: Simplify right side
    343,160.40x = 169,698,755,066.69
  5. Step 5: Solve for x
    x = 169,698,755,066.69/343,160.40
  6. Step 6: Final answer
    x = 494,517.30

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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.