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Finding the Fourth Proportional to 457,189.80, 630,873.81 and 253,235.25

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Solution

The fourth proportional to 457,189.80, 630,873.81 and 253,235.25 is: 349,437.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,189.80 : 630,873.81 = 253,235.25 : x
  2. Step 2: Convert to fraction form
    457,189.80/630,873.81 = 253,235.25/x
  3. Step 3: Cross multiply
    457,189.80x = 630,873.81 × 253,235.25
  4. Step 4: Simplify right side
    457,189.80x = 159,759,486,993.80
  5. Step 5: Solve for x
    x = 159,759,486,993.80/457,189.80
  6. Step 6: Final answer
    x = 349,437.99

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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.