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Finding the Fourth Proportional to 284,490.90, 392,608.74 and 163,632.06

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Solution

The fourth proportional to 284,490.90, 392,608.74 and 163,632.06 is: 225,818.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,490.90 : 392,608.74 = 163,632.06 : x
  2. Step 2: Convert to fraction form
    284,490.90/392,608.74 = 163,632.06/x
  3. Step 3: Cross multiply
    284,490.90x = 392,608.74 × 163,632.06
  4. Step 4: Simplify right side
    284,490.90x = 64,243,376,900.20
  5. Step 5: Solve for x
    x = 64,243,376,900.20/284,490.90
  6. Step 6: Final answer
    x = 225,818.74

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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.