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Finding the Fourth Proportional to 230,702.20, 346,053.30 and 81,111.40

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Solution

The fourth proportional to 230,702.20, 346,053.30 and 81,111.40 is: 121,667.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,702.20 : 346,053.30 = 81,111.40 : x
  2. Step 2: Convert to fraction form
    230,702.20/346,053.30 = 81,111.40/x
  3. Step 3: Cross multiply
    230,702.20x = 346,053.30 × 81,111.40
  4. Step 4: Simplify right side
    230,702.20x = 28,068,867,637.62
  5. Step 5: Solve for x
    x = 28,068,867,637.62/230,702.20
  6. Step 6: Final answer
    x = 121,667.10

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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.