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Finding the Fourth Proportional to 249,554, 374,106.36 and 91,748.72

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Solution

The fourth proportional to 249,554, 374,106.36 and 91,748.72 is: 137,540.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,554 : 374,106.36 = 91,748.72 : x
  2. Step 2: Convert to fraction form
    249,554/374,106.36 = 91,748.72/x
  3. Step 3: Cross multiply
    249,554x = 374,106.36 × 91,748.72
  4. Step 4: Simplify right side
    249,554x = 34,323,779,673.86
  5. Step 5: Solve for x
    x = 34,323,779,673.86/249,554
  6. Step 6: Final answer
    x = 137,540.49

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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.