Home / 380,531.16-525,136.86-229,599

Finding the Fourth Proportional to 380,531.16, 525,136.86 and 229,599

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Solution

The fourth proportional to 380,531.16, 525,136.86 and 229,599 is: 316,848.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,531.16 : 525,136.86 = 229,599 : x
  2. Step 2: Convert to fraction form
    380,531.16/525,136.86 = 229,599/x
  3. Step 3: Cross multiply
    380,531.16x = 525,136.86 × 229,599
  4. Step 4: Simplify right side
    380,531.16x = 120,570,897,919.14
  5. Step 5: Solve for x
    x = 120,570,897,919.14/380,531.16
  6. Step 6: Final answer
    x = 316,848.95

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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.