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Finding the Fourth Proportional to 456,551.88, 630,038.18 and 255,347.88

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Solution

The fourth proportional to 456,551.88, 630,038.18 and 255,347.88 is: 352,378.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,551.88 : 630,038.18 = 255,347.88 : x
  2. Step 2: Convert to fraction form
    456,551.88/630,038.18 = 255,347.88/x
  3. Step 3: Cross multiply
    456,551.88x = 630,038.18 × 255,347.88
  4. Step 4: Simplify right side
    456,551.88x = 160,878,913,582.06
  5. Step 5: Solve for x
    x = 160,878,913,582.06/456,551.88
  6. Step 6: Final answer
    x = 352,378.16

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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.