Home / 256,880.43-385,225.07-88,353.45

Finding the Fourth Proportional to 256,880.43, 385,225.07 and 88,353.45

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Solution

The fourth proportional to 256,880.43, 385,225.07 and 88,353.45 is: 132,497.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,880.43 : 385,225.07 = 88,353.45 : x
  2. Step 2: Convert to fraction form
    256,880.43/385,225.07 = 88,353.45/x
  3. Step 3: Cross multiply
    256,880.43x = 385,225.07 × 88,353.45
  4. Step 4: Simplify right side
    256,880.43x = 34,035,963,519.22
  5. Step 5: Solve for x
    x = 34,035,963,519.22/256,880.43
  6. Step 6: Final answer
    x = 132,497.30

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1.5x scale

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.