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Finding the Fourth Proportional to 318,965.58, 478,492.10 and 94,343.66

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Solution

The fourth proportional to 318,965.58, 478,492.10 and 94,343.66 is: 141,528.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,965.58 : 478,492.10 = 94,343.66 : x
  2. Step 2: Convert to fraction form
    318,965.58/478,492.10 = 94,343.66/x
  3. Step 3: Cross multiply
    318,965.58x = 478,492.10 × 94,343.66
  4. Step 4: Simplify right side
    318,965.58x = 45,142,695,995.09
  5. Step 5: Solve for x
    x = 45,142,695,995.09/318,965.58
  6. Step 6: Final answer
    x = 141,528.42

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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.