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Finding the Fourth Proportional to 342,781.02, 473,025.60 and 189,810.18

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Solution

The fourth proportional to 342,781.02, 473,025.60 and 189,810.18 is: 261,931.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,781.02 : 473,025.60 = 189,810.18 : x
  2. Step 2: Convert to fraction form
    342,781.02/473,025.60 = 189,810.18/x
  3. Step 3: Cross multiply
    342,781.02x = 473,025.60 × 189,810.18
  4. Step 4: Simplify right side
    342,781.02x = 89,785,074,280.61
  5. Step 5: Solve for x
    x = 89,785,074,280.61/342,781.02
  6. Step 6: Final answer
    x = 261,931.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.