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Finding the Fourth Proportional to 316,239.68, 436,159.56 and 238,973.36

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Solution

The fourth proportional to 316,239.68, 436,159.56 and 238,973.36 is: 329,593.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,239.68 : 436,159.56 = 238,973.36 : x
  2. Step 2: Convert to fraction form
    316,239.68/436,159.56 = 238,973.36/x
  3. Step 3: Cross multiply
    316,239.68x = 436,159.56 × 238,973.36
  4. Step 4: Simplify right side
    316,239.68x = 104,230,515,549.32
  5. Step 5: Solve for x
    x = 104,230,515,549.32/316,239.68
  6. Step 6: Final answer
    x = 329,593.41

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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.