Home / 284,512.16-392,622.17-155,447.85

Finding the Fourth Proportional to 284,512.16, 392,622.17 and 155,447.85

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Solution

The fourth proportional to 284,512.16, 392,622.17 and 155,447.85 is: 214,515.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,512.16 : 392,622.17 = 155,447.85 : x
  2. Step 2: Convert to fraction form
    284,512.16/392,622.17 = 155,447.85/x
  3. Step 3: Cross multiply
    284,512.16x = 392,622.17 × 155,447.85
  4. Step 4: Simplify right side
    284,512.16x = 61,032,271,411.60
  5. Step 5: Solve for x
    x = 61,032,271,411.60/284,512.16
  6. Step 6: Final answer
    x = 214,515.51

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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.