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Finding the Fourth Proportional to 302,915.60, 418,018.10 and 165,095.76

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Solution

The fourth proportional to 302,915.60, 418,018.10 and 165,095.76 is: 227,829.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,915.60 : 418,018.10 = 165,095.76 : x
  2. Step 2: Convert to fraction form
    302,915.60/418,018.10 = 165,095.76/x
  3. Step 3: Cross multiply
    302,915.60x = 418,018.10 × 165,095.76
  4. Step 4: Simplify right side
    302,915.60x = 69,013,015,087.78
  5. Step 5: Solve for x
    x = 69,013,015,087.78/302,915.60
  6. Step 6: Final answer
    x = 227,829.19

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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.