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Finding the Fourth Proportional to 456,615.88, 630,095.70 and 255,373

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Solution

The fourth proportional to 456,615.88, 630,095.70 and 255,373 is: 352,395.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,615.88 : 630,095.70 = 255,373 : x
  2. Step 2: Convert to fraction form
    456,615.88/630,095.70 = 255,373/x
  3. Step 3: Cross multiply
    456,615.88x = 630,095.70 × 255,373
  4. Step 4: Simplify right side
    456,615.88x = 160,909,429,196.10
  5. Step 5: Solve for x
    x = 160,909,429,196.10/456,615.88
  6. Step 6: Final answer
    x = 352,395.60

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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.