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Finding the Fourth Proportional to 310,942.53, 429,211.50 and 183,618.63

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Solution

The fourth proportional to 310,942.53, 429,211.50 and 183,618.63 is: 253,459.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,942.53 : 429,211.50 = 183,618.63 : x
  2. Step 2: Convert to fraction form
    310,942.53/429,211.50 = 183,618.63/x
  3. Step 3: Cross multiply
    310,942.53x = 429,211.50 × 183,618.63
  4. Step 4: Simplify right side
    310,942.53x = 78,811,227,610.25
  5. Step 5: Solve for x
    x = 78,811,227,610.25/310,942.53
  6. Step 6: Final answer
    x = 253,459.14

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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.