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Finding the Fourth Proportional to 343,348.80, 514,850.40 and 203,150.40

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Solution

The fourth proportional to 343,348.80, 514,850.40 and 203,150.40 is: 304,623.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,348.80 : 514,850.40 = 203,150.40 : x
  2. Step 2: Convert to fraction form
    343,348.80/514,850.40 = 203,150.40/x
  3. Step 3: Cross multiply
    343,348.80x = 514,850.40 × 203,150.40
  4. Step 4: Simplify right side
    343,348.80x = 104,592,064,700.16
  5. Step 5: Solve for x
    x = 104,592,064,700.16/343,348.80
  6. Step 6: Final answer
    x = 304,623.36

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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.