Home / 374,904.78-517,368.54-205,138.86

Finding the Fourth Proportional to 374,904.78, 517,368.54 and 205,138.86

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Solution

The fourth proportional to 374,904.78, 517,368.54 and 205,138.86 is: 283,091.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,904.78 : 517,368.54 = 205,138.86 : x
  2. Step 2: Convert to fraction form
    374,904.78/517,368.54 = 205,138.86/x
  3. Step 3: Cross multiply
    374,904.78x = 517,368.54 × 205,138.86
  4. Step 4: Simplify right side
    374,904.78x = 106,132,392,495.46
  5. Step 5: Solve for x
    x = 106,132,392,495.46/374,904.78
  6. Step 6: Final answer
    x = 283,091.60

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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.