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Finding the Fourth Proportional to 370,642.29, 511,440.64 and 263,173.11

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Solution

The fourth proportional to 370,642.29, 511,440.64 and 263,173.11 is: 363,146.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,642.29 : 511,440.64 = 263,173.11 : x
  2. Step 2: Convert to fraction form
    370,642.29/511,440.64 = 263,173.11/x
  3. Step 3: Cross multiply
    370,642.29x = 511,440.64 × 263,173.11
  4. Step 4: Simplify right side
    370,642.29x = 134,597,423,809.19
  5. Step 5: Solve for x
    x = 134,597,423,809.19/370,642.29
  6. Step 6: Final answer
    x = 363,146.43

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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.