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Finding the Fourth Proportional to 381,738.40, 572,607.60 and 241,655.20

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Solution

The fourth proportional to 381,738.40, 572,607.60 and 241,655.20 is: 362,482.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,738.40 : 572,607.60 = 241,655.20 : x
  2. Step 2: Convert to fraction form
    381,738.40/572,607.60 = 241,655.20/x
  3. Step 3: Cross multiply
    381,738.40x = 572,607.60 × 241,655.20
  4. Step 4: Simplify right side
    381,738.40x = 138,373,604,099.52
  5. Step 5: Solve for x
    x = 138,373,604,099.52/381,738.40
  6. Step 6: Final answer
    x = 362,482.80

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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.