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Finding the Fourth Proportional to 346,056.30, 518,100.30 and 266,668.20

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Solution

The fourth proportional to 346,056.30, 518,100.30 and 266,668.20 is: 399,243.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,056.30 : 518,100.30 = 266,668.20 : x
  2. Step 2: Convert to fraction form
    346,056.30/518,100.30 = 266,668.20/x
  3. Step 3: Cross multiply
    346,056.30x = 518,100.30 × 266,668.20
  4. Step 4: Simplify right side
    346,056.30x = 138,160,874,420.46
  5. Step 5: Solve for x
    x = 138,160,874,420.46/346,056.30
  6. Step 6: Final answer
    x = 399,243.92

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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.