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Finding the Fourth Proportional to 272,829.80, 409,244.70 and 249,210.20

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Solution

The fourth proportional to 272,829.80, 409,244.70 and 249,210.20 is: 373,815.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,829.80 : 409,244.70 = 249,210.20 : x
  2. Step 2: Convert to fraction form
    272,829.80/409,244.70 = 249,210.20/x
  3. Step 3: Cross multiply
    272,829.80x = 409,244.70 × 249,210.20
  4. Step 4: Simplify right side
    272,829.80x = 101,987,953,535.94
  5. Step 5: Solve for x
    x = 101,987,953,535.94/272,829.80
  6. Step 6: Final answer
    x = 373,815.30

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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.