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Finding the Fourth Proportional to 370,782, 551,403.24 and 358,972.08

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Solution

The fourth proportional to 370,782, 551,403.24 and 358,972.08 is: 533,840.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,782 : 551,403.24 = 358,972.08 : x
  2. Step 2: Convert to fraction form
    370,782/551,403.24 = 358,972.08/x
  3. Step 3: Cross multiply
    370,782x = 551,403.24 × 358,972.08
  4. Step 4: Simplify right side
    370,782x = 197,938,367,981.54
  5. Step 5: Solve for x
    x = 197,938,367,981.54/370,782
  6. Step 6: Final answer
    x = 533,840.28

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.