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Finding the Fourth Proportional to 341,239.80, 512,013.30 and 163,678.20

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Solution

The fourth proportional to 341,239.80, 512,013.30 and 163,678.20 is: 245,590.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,239.80 : 512,013.30 = 163,678.20 : x
  2. Step 2: Convert to fraction form
    341,239.80/512,013.30 = 163,678.20/x
  3. Step 3: Cross multiply
    341,239.80x = 512,013.30 × 163,678.20
  4. Step 4: Simplify right side
    341,239.80x = 83,805,415,320.06
  5. Step 5: Solve for x
    x = 83,805,415,320.06/341,239.80
  6. Step 6: Final answer
    x = 245,590.98

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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.