Home / 272,592.10-376,177.05-151,730.78

Finding the Fourth Proportional to 272,592.10, 376,177.05 and 151,730.78

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Solution

The fourth proportional to 272,592.10, 376,177.05 and 151,730.78 is: 209,388.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,592.10 : 376,177.05 = 151,730.78 : x
  2. Step 2: Convert to fraction form
    272,592.10/376,177.05 = 151,730.78/x
  3. Step 3: Cross multiply
    272,592.10x = 376,177.05 × 151,730.78
  4. Step 4: Simplify right side
    272,592.10x = 57,077,637,214.60
  5. Step 5: Solve for x
    x = 57,077,637,214.60/272,592.10
  6. Step 6: Final answer
    x = 209,388.45

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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.