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Finding the Fourth Proportional to 349,915.60, 525,132.60 and 256,603.60

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Solution

The fourth proportional to 349,915.60, 525,132.60 and 256,603.60 is: 385,095.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,915.60 : 525,132.60 = 256,603.60 : x
  2. Step 2: Convert to fraction form
    349,915.60/525,132.60 = 256,603.60/x
  3. Step 3: Cross multiply
    349,915.60x = 525,132.60 × 256,603.60
  4. Step 4: Simplify right side
    349,915.60x = 134,750,915,637.36
  5. Step 5: Solve for x
    x = 134,750,915,637.36/349,915.60
  6. Step 6: Final answer
    x = 385,095.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.