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Finding the Fourth Proportional to 307,952.64, 425,268.12 and 291,180.18

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Solution

The fourth proportional to 307,952.64, 425,268.12 and 291,180.18 is: 402,106.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,952.64 : 425,268.12 = 291,180.18 : x
  2. Step 2: Convert to fraction form
    307,952.64/425,268.12 = 291,180.18/x
  3. Step 3: Cross multiply
    307,952.64x = 425,268.12 × 291,180.18
  4. Step 4: Simplify right side
    307,952.64x = 123,829,647,729.86
  5. Step 5: Solve for x
    x = 123,829,647,729.86/307,952.64
  6. Step 6: Final answer
    x = 402,106.14

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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.