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Finding the Fourth Proportional to 319,126.84, 440,397.71 and 175,887.25

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Solution

The fourth proportional to 319,126.84, 440,397.71 and 175,887.25 is: 242,725.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,126.84 : 440,397.71 = 175,887.25 : x
  2. Step 2: Convert to fraction form
    319,126.84/440,397.71 = 175,887.25/x
  3. Step 3: Cross multiply
    319,126.84x = 440,397.71 × 175,887.25
  4. Step 4: Simplify right side
    319,126.84x = 77,460,340,797.34
  5. Step 5: Solve for x
    x = 77,460,340,797.34/319,126.84
  6. Step 6: Final answer
    x = 242,725.87

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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.