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Finding the Fourth Proportional to 369,937.18, 510,513.60 and 256,825.54

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Solution

The fourth proportional to 369,937.18, 510,513.60 and 256,825.54 is: 354,419.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,937.18 : 510,513.60 = 256,825.54 : x
  2. Step 2: Convert to fraction form
    369,937.18/510,513.60 = 256,825.54/x
  3. Step 3: Cross multiply
    369,937.18x = 510,513.60 × 256,825.54
  4. Step 4: Simplify right side
    369,937.18x = 131,112,930,997.34
  5. Step 5: Solve for x
    x = 131,112,930,997.34/369,937.18
  6. Step 6: Final answer
    x = 354,419.45

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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.