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Finding the Fourth Proportional to 346,518, 478,194.84 and 195,624.72

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Solution

The fourth proportional to 346,518, 478,194.84 and 195,624.72 is: 269,962.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,518 : 478,194.84 = 195,624.72 : x
  2. Step 2: Convert to fraction form
    346,518/478,194.84 = 195,624.72/x
  3. Step 3: Cross multiply
    346,518x = 478,194.84 × 195,624.72
  4. Step 4: Simplify right side
    346,518x = 93,546,731,680.44
  5. Step 5: Solve for x
    x = 93,546,731,680.44/346,518
  6. Step 6: Final answer
    x = 269,962.11

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1.5x scale

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.