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Finding the Fourth Proportional to 249,061.50, 343,704.90 and 159,637.50

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Solution

The fourth proportional to 249,061.50, 343,704.90 and 159,637.50 is: 220,299.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,061.50 : 343,704.90 = 159,637.50 : x
  2. Step 2: Convert to fraction form
    249,061.50/343,704.90 = 159,637.50/x
  3. Step 3: Cross multiply
    249,061.50x = 343,704.90 × 159,637.50
  4. Step 4: Simplify right side
    249,061.50x = 54,868,190,973.75
  5. Step 5: Solve for x
    x = 54,868,190,973.75/249,061.50
  6. Step 6: Final answer
    x = 220,299.77

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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.