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Finding the Fourth Proportional to 456,574.88, 630,039.12 and 255,332

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Solution

The fourth proportional to 456,574.88, 630,039.12 and 255,332 is: 352,339.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,574.88 : 630,039.12 = 255,332 : x
  2. Step 2: Convert to fraction form
    456,574.88/630,039.12 = 255,332/x
  3. Step 3: Cross multiply
    456,574.88x = 630,039.12 × 255,332
  4. Step 4: Simplify right side
    456,574.88x = 160,869,148,587.84
  5. Step 5: Solve for x
    x = 160,869,148,587.84/456,574.88
  6. Step 6: Final answer
    x = 352,339.03

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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.