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Finding the Fourth Proportional to 274,663.71, 379,004.60 and 153,788.19

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Solution

The fourth proportional to 274,663.71, 379,004.60 and 153,788.19 is: 212,210.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,663.71 : 379,004.60 = 153,788.19 : x
  2. Step 2: Convert to fraction form
    274,663.71/379,004.60 = 153,788.19/x
  3. Step 3: Cross multiply
    274,663.71x = 379,004.60 × 153,788.19
  4. Step 4: Simplify right side
    274,663.71x = 58,286,430,666.73
  5. Step 5: Solve for x
    x = 58,286,430,666.73/274,663.71
  6. Step 6: Final answer
    x = 212,210.16

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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.