Home / 284,316.32-392,353.92-156,989.12

Finding the Fourth Proportional to 284,316.32, 392,353.92 and 156,989.12

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Solution

The fourth proportional to 284,316.32, 392,353.92 and 156,989.12 is: 216,643.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,316.32 : 392,353.92 = 156,989.12 : x
  2. Step 2: Convert to fraction form
    284,316.32/392,353.92 = 156,989.12/x
  3. Step 3: Cross multiply
    284,316.32x = 392,353.92 × 156,989.12
  4. Step 4: Simplify right side
    284,316.32x = 61,595,296,629.35
  5. Step 5: Solve for x
    x = 61,595,296,629.35/284,316.32
  6. Step 6: Final answer
    x = 216,643.55

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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.