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Finding the Fourth Proportional to 362,688.40, 544,032.60 and 256,934.80

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Solution

The fourth proportional to 362,688.40, 544,032.60 and 256,934.80 is: 385,402.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,688.40 : 544,032.60 = 256,934.80 : x
  2. Step 2: Convert to fraction form
    362,688.40/544,032.60 = 256,934.80/x
  3. Step 3: Cross multiply
    362,688.40x = 544,032.60 × 256,934.80
  4. Step 4: Simplify right side
    362,688.40x = 139,780,907,274.48
  5. Step 5: Solve for x
    x = 139,780,907,274.48/362,688.40
  6. Step 6: Final answer
    x = 385,402.20

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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.