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Finding the Fourth Proportional to 243,511.78, 336,260.05 and 153,024.50

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Solution

The fourth proportional to 243,511.78, 336,260.05 and 153,024.50 is: 211,308.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,511.78 : 336,260.05 = 153,024.50 : x
  2. Step 2: Convert to fraction form
    243,511.78/336,260.05 = 153,024.50/x
  3. Step 3: Cross multiply
    243,511.78x = 336,260.05 × 153,024.50
  4. Step 4: Simplify right side
    243,511.78x = 51,456,026,021.23
  5. Step 5: Solve for x
    x = 51,456,026,021.23/243,511.78
  6. Step 6: Final answer
    x = 211,308.16

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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.