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Finding the Fourth Proportional to 230,887.80, 346,331.70 and 213,607.80

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Solution

The fourth proportional to 230,887.80, 346,331.70 and 213,607.80 is: 320,411.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,887.80 : 346,331.70 = 213,607.80 : x
  2. Step 2: Convert to fraction form
    230,887.80/346,331.70 = 213,607.80/x
  3. Step 3: Cross multiply
    230,887.80x = 346,331.70 × 213,607.80
  4. Step 4: Simplify right side
    230,887.80x = 73,979,152,507.26
  5. Step 5: Solve for x
    x = 73,979,152,507.26/230,887.80
  6. Step 6: Final answer
    x = 320,411.70

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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.