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Finding the Fourth Proportional to 346,554.72, 478,248.53 and 199,401.53

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Solution

The fourth proportional to 346,554.72, 478,248.53 and 199,401.53 is: 275,175.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,554.72 : 478,248.53 = 199,401.53 : x
  2. Step 2: Convert to fraction form
    346,554.72/478,248.53 = 199,401.53/x
  3. Step 3: Cross multiply
    346,554.72x = 478,248.53 × 199,401.53
  4. Step 4: Simplify right side
    346,554.72x = 95,363,485,214.00
  5. Step 5: Solve for x
    x = 95,363,485,214.00/346,554.72
  6. Step 6: Final answer
    x = 275,175.84

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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.