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Finding the Fourth Proportional to 350,043.60, 524,143.80 and 256,040.40

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Solution

The fourth proportional to 350,043.60, 524,143.80 and 256,040.40 is: 383,386.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,043.60 : 524,143.80 = 256,040.40 : x
  2. Step 2: Convert to fraction form
    350,043.60/524,143.80 = 256,040.40/x
  3. Step 3: Cross multiply
    350,043.60x = 524,143.80 × 256,040.40
  4. Step 4: Simplify right side
    350,043.60x = 134,201,988,209.52
  5. Step 5: Solve for x
    x = 134,201,988,209.52/350,043.60
  6. Step 6: Final answer
    x = 383,386.49

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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.