Home / 284,769.64-392,983.92-157,449.76

Finding the Fourth Proportional to 284,769.64, 392,983.92 and 157,449.76

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Solution

The fourth proportional to 284,769.64, 392,983.92 and 157,449.76 is: 217,281.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,769.64 : 392,983.92 = 157,449.76 : x
  2. Step 2: Convert to fraction form
    284,769.64/392,983.92 = 157,449.76/x
  3. Step 3: Cross multiply
    284,769.64x = 392,983.92 × 157,449.76
  4. Step 4: Simplify right side
    284,769.64x = 61,875,223,887.86
  5. Step 5: Solve for x
    x = 61,875,223,887.86/284,769.64
  6. Step 6: Final answer
    x = 217,281.67

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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.