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Finding the Fourth Proportional to 249,417.68, 374,073 and 71,891.60

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Solution

The fourth proportional to 249,417.68, 374,073 and 71,891.60 is: 107,821.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,417.68 : 374,073 = 71,891.60 : x
  2. Step 2: Convert to fraction form
    249,417.68/374,073 = 71,891.60/x
  3. Step 3: Cross multiply
    249,417.68x = 374,073 × 71,891.60
  4. Step 4: Simplify right side
    249,417.68x = 26,892,706,486.80
  5. Step 5: Solve for x
    x = 26,892,706,486.80/249,417.68
  6. Step 6: Final answer
    x = 107,821.97

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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.