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Finding the Fourth Proportional to 368,380.17, 508,394.15 and 207,225.60

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Solution

The fourth proportional to 368,380.17, 508,394.15 and 207,225.60 is: 285,987.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,380.17 : 508,394.15 = 207,225.60 : x
  2. Step 2: Convert to fraction form
    368,380.17/508,394.15 = 207,225.60/x
  3. Step 3: Cross multiply
    368,380.17x = 508,394.15 × 207,225.60
  4. Step 4: Simplify right side
    368,380.17x = 105,352,281,734.11
  5. Step 5: Solve for x
    x = 105,352,281,734.11/368,380.17
  6. Step 6: Final answer
    x = 285,987.93

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1.5x scale

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.