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Finding the Fourth Proportional to 319,482.20, 479,223.30 and 97,866.20

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Solution

The fourth proportional to 319,482.20, 479,223.30 and 97,866.20 is: 146,799.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,482.20 : 479,223.30 = 97,866.20 : x
  2. Step 2: Convert to fraction form
    319,482.20/479,223.30 = 97,866.20/x
  3. Step 3: Cross multiply
    319,482.20x = 479,223.30 × 97,866.20
  4. Step 4: Simplify right side
    319,482.20x = 46,899,763,322.46
  5. Step 5: Solve for x
    x = 46,899,763,322.46/319,482.20
  6. Step 6: Final answer
    x = 146,799.30

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Similar ratio
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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.