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Finding the Fourth Proportional to 284,510.63, 392,624.36 and 163,648.81

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Solution

The fourth proportional to 284,510.63, 392,624.36 and 163,648.81 is: 225,835.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,510.63 : 392,624.36 = 163,648.81 : x
  2. Step 2: Convert to fraction form
    284,510.63/392,624.36 = 163,648.81/x
  3. Step 3: Cross multiply
    284,510.63x = 392,624.36 × 163,648.81
  4. Step 4: Simplify right side
    284,510.63x = 64,252,508,289.24
  5. Step 5: Solve for x
    x = 64,252,508,289.24/284,510.63
  6. Step 6: Final answer
    x = 225,835.18

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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.