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Finding the Fourth Proportional to 249,689.22, 374,532.39 and 83,475.78

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Solution

The fourth proportional to 249,689.22, 374,532.39 and 83,475.78 is: 125,213.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,689.22 : 374,532.39 = 83,475.78 : x
  2. Step 2: Convert to fraction form
    249,689.22/374,532.39 = 83,475.78/x
  3. Step 3: Cross multiply
    249,689.22x = 374,532.39 × 83,475.78
  4. Step 4: Simplify right side
    249,689.22x = 31,264,383,390.51
  5. Step 5: Solve for x
    x = 31,264,383,390.51/249,689.22
  6. Step 6: Final answer
    x = 125,213.19

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1.5x scale

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.