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Finding the Fourth Proportional to 457,040.82, 630,706.32 and 266,050.20

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Solution

The fourth proportional to 457,040.82, 630,706.32 and 266,050.20 is: 367,143.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,040.82 : 630,706.32 = 266,050.20 : x
  2. Step 2: Convert to fraction form
    457,040.82/630,706.32 = 266,050.20/x
  3. Step 3: Cross multiply
    457,040.82x = 630,706.32 × 266,050.20
  4. Step 4: Simplify right side
    457,040.82x = 167,799,542,577.26
  5. Step 5: Solve for x
    x = 167,799,542,577.26/457,040.82
  6. Step 6: Final answer
    x = 367,143.45

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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.