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Finding the Fourth Proportional to 345,883.04, 477,312.72 and 194,979.68

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Solution

The fourth proportional to 345,883.04, 477,312.72 and 194,979.68 is: 269,068.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,883.04 : 477,312.72 = 194,979.68 : x
  2. Step 2: Convert to fraction form
    345,883.04/477,312.72 = 194,979.68/x
  3. Step 3: Cross multiply
    345,883.04x = 477,312.72 × 194,979.68
  4. Step 4: Simplify right side
    345,883.04x = 93,066,281,405.53
  5. Step 5: Solve for x
    x = 93,066,281,405.53/345,883.04
  6. Step 6: Final answer
    x = 269,068.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.