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Finding the Fourth Proportional to 268,114.80, 402,172.20 and 173,636.40

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Solution

The fourth proportional to 268,114.80, 402,172.20 and 173,636.40 is: 260,454.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,114.80 : 402,172.20 = 173,636.40 : x
  2. Step 2: Convert to fraction form
    268,114.80/402,172.20 = 173,636.40/x
  3. Step 3: Cross multiply
    268,114.80x = 402,172.20 × 173,636.40
  4. Step 4: Simplify right side
    268,114.80x = 69,831,732,988.08
  5. Step 5: Solve for x
    x = 69,831,732,988.08/268,114.80
  6. Step 6: Final answer
    x = 260,454.60

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1.5x scale

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.