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Finding the Fourth Proportional to 346,908.30, 520,411.05 and 147,227.10

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Solution

The fourth proportional to 346,908.30, 520,411.05 and 147,227.10 is: 220,861.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,908.30 : 520,411.05 = 147,227.10 : x
  2. Step 2: Convert to fraction form
    346,908.30/520,411.05 = 147,227.10/x
  3. Step 3: Cross multiply
    346,908.30x = 520,411.05 × 147,227.10
  4. Step 4: Simplify right side
    346,908.30x = 76,618,609,699.46
  5. Step 5: Solve for x
    x = 76,618,609,699.46/346,908.30
  6. Step 6: Final answer
    x = 220,861.28

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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.