Home / 249,784.40-374,582.56-81,260.64

Finding the Fourth Proportional to 249,784.40, 374,582.56 and 81,260.64

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Solution

The fourth proportional to 249,784.40, 374,582.56 and 81,260.64 is: 121,860.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,784.40 : 374,582.56 = 81,260.64 : x
  2. Step 2: Convert to fraction form
    249,784.40/374,582.56 = 81,260.64/x
  3. Step 3: Cross multiply
    249,784.40x = 374,582.56 × 81,260.64
  4. Step 4: Simplify right side
    249,784.40x = 30,438,818,558.44
  5. Step 5: Solve for x
    x = 30,438,818,558.44/249,784.40
  6. Step 6: Final answer
    x = 121,860.37

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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.