Home / 284,729.40-392,945.10-163,885.56

Finding the Fourth Proportional to 284,729.40, 392,945.10 and 163,885.56

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Solution

The fourth proportional to 284,729.40, 392,945.10 and 163,885.56 is: 226,172.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,729.40 : 392,945.10 = 163,885.56 : x
  2. Step 2: Convert to fraction form
    284,729.40/392,945.10 = 163,885.56/x
  3. Step 3: Cross multiply
    284,729.40x = 392,945.10 × 163,885.56
  4. Step 4: Simplify right side
    284,729.40x = 64,398,027,762.76
  5. Step 5: Solve for x
    x = 64,398,027,762.76/284,729.40
  6. Step 6: Final answer
    x = 226,172.74

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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.