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Finding the Fourth Proportional to 230,780.80, 346,300.80 and 97,638.40

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Solution

The fourth proportional to 230,780.80, 346,300.80 and 97,638.40 is: 146,512.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,780.80 : 346,300.80 = 97,638.40 : x
  2. Step 2: Convert to fraction form
    230,780.80/346,300.80 = 97,638.40/x
  3. Step 3: Cross multiply
    230,780.80x = 346,300.80 × 97,638.40
  4. Step 4: Simplify right side
    230,780.80x = 33,812,256,030.72
  5. Step 5: Solve for x
    x = 33,812,256,030.72/230,780.80
  6. Step 6: Final answer
    x = 146,512.43

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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.