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Finding the Fourth Proportional to 355,720.41, 533,541.23 and 89,480.90

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Solution

The fourth proportional to 355,720.41, 533,541.23 and 89,480.90 is: 134,211.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,720.41 : 533,541.23 = 89,480.90 : x
  2. Step 2: Convert to fraction form
    355,720.41/533,541.23 = 89,480.90/x
  3. Step 3: Cross multiply
    355,720.41x = 533,541.23 × 89,480.90
  4. Step 4: Simplify right side
    355,720.41x = 47,741,750,669.51
  5. Step 5: Solve for x
    x = 47,741,750,669.51/355,720.41
  6. Step 6: Final answer
    x = 134,211.45

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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.