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Finding the Fourth Proportional to 249,695.88, 374,466.06 and 83,445

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Solution

The fourth proportional to 249,695.88, 374,466.06 and 83,445 is: 125,141.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,695.88 : 374,466.06 = 83,445 : x
  2. Step 2: Convert to fraction form
    249,695.88/374,466.06 = 83,445/x
  3. Step 3: Cross multiply
    249,695.88x = 374,466.06 × 83,445
  4. Step 4: Simplify right side
    249,695.88x = 31,247,320,376.70
  5. Step 5: Solve for x
    x = 31,247,320,376.70/249,695.88
  6. Step 6: Final answer
    x = 125,141.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.