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Finding the Fourth Proportional to 341,484.96, 512,283.12 and 128,269.56

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Solution

The fourth proportional to 341,484.96, 512,283.12 and 128,269.56 is: 192,425.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,484.96 : 512,283.12 = 128,269.56 : x
  2. Step 2: Convert to fraction form
    341,484.96/512,283.12 = 128,269.56/x
  3. Step 3: Cross multiply
    341,484.96x = 512,283.12 × 128,269.56
  4. Step 4: Simplify right side
    341,484.96x = 65,710,330,397.83
  5. Step 5: Solve for x
    x = 65,710,330,397.83/341,484.96
  6. Step 6: Final answer
    x = 192,425.25

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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.