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Finding the Fourth Proportional to 456,883.20, 630,485.28 and 252,943.20

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Solution

The fourth proportional to 456,883.20, 630,485.28 and 252,943.20 is: 349,054.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,883.20 : 630,485.28 = 252,943.20 : x
  2. Step 2: Convert to fraction form
    456,883.20/630,485.28 = 252,943.20/x
  3. Step 3: Cross multiply
    456,883.20x = 630,485.28 × 252,943.20
  4. Step 4: Simplify right side
    456,883.20x = 159,476,964,276.10
  5. Step 5: Solve for x
    x = 159,476,964,276.10/456,883.20
  6. Step 6: Final answer
    x = 349,054.12

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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.