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Finding the Fourth Proportional to 274,275.66, 378,535.42 and 153,423.66

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Solution

The fourth proportional to 274,275.66, 378,535.42 and 153,423.66 is: 211,744.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,275.66 : 378,535.42 = 153,423.66 : x
  2. Step 2: Convert to fraction form
    274,275.66/378,535.42 = 153,423.66/x
  3. Step 3: Cross multiply
    274,275.66x = 378,535.42 × 153,423.66
  4. Step 4: Simplify right side
    274,275.66x = 58,076,289,576.04
  5. Step 5: Solve for x
    x = 58,076,289,576.04/274,275.66
  6. Step 6: Final answer
    x = 211,744.23

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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.