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Finding the Fourth Proportional to 346,662.72, 478,364.82 and 199,492.32

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Solution

The fourth proportional to 346,662.72, 478,364.82 and 199,492.32 is: 275,282.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,662.72 : 478,364.82 = 199,492.32 : x
  2. Step 2: Convert to fraction form
    346,662.72/478,364.82 = 199,492.32/x
  3. Step 3: Cross multiply
    346,662.72x = 478,364.82 × 199,492.32
  4. Step 4: Simplify right side
    346,662.72x = 95,430,107,748.18
  5. Step 5: Solve for x
    x = 95,430,107,748.18/346,662.72
  6. Step 6: Final answer
    x = 275,282.29

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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.