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Finding the Fourth Proportional to 272,550, 376,124.76 and 153,318

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Solution

The fourth proportional to 272,550, 376,124.76 and 153,318 is: 211,582.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,550 : 376,124.76 = 153,318 : x
  2. Step 2: Convert to fraction form
    272,550/376,124.76 = 153,318/x
  3. Step 3: Cross multiply
    272,550x = 376,124.76 × 153,318
  4. Step 4: Simplify right side
    272,550x = 57,666,695,953.68
  5. Step 5: Solve for x
    x = 57,666,695,953.68/272,550
  6. Step 6: Final answer
    x = 211,582.08

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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.