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Finding the Fourth Proportional to 238,064.99, 328,528.78 and 130,636.82

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Solution

The fourth proportional to 238,064.99, 328,528.78 and 130,636.82 is: 180,278.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,064.99 : 328,528.78 = 130,636.82 : x
  2. Step 2: Convert to fraction form
    238,064.99/328,528.78 = 130,636.82/x
  3. Step 3: Cross multiply
    238,064.99x = 328,528.78 × 130,636.82
  4. Step 4: Simplify right side
    238,064.99x = 42,917,955,097.68
  5. Step 5: Solve for x
    x = 42,917,955,097.68/238,064.99
  6. Step 6: Final answer
    x = 180,278.31

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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.