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Finding the Fourth Proportional to 249,578.53, 344,489.02 and 147,639.42

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Solution

The fourth proportional to 249,578.53, 344,489.02 and 147,639.42 is: 203,784.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,578.53 : 344,489.02 = 147,639.42 : x
  2. Step 2: Convert to fraction form
    249,578.53/344,489.02 = 147,639.42/x
  3. Step 3: Cross multiply
    249,578.53x = 344,489.02 × 147,639.42
  4. Step 4: Simplify right side
    249,578.53x = 50,860,158,740.07
  5. Step 5: Solve for x
    x = 50,860,158,740.07/249,578.53
  6. Step 6: Final answer
    x = 203,784.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.