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Finding the Fourth Proportional to 288,475.56, 398,095.74 and 173,820.60

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Solution

The fourth proportional to 288,475.56, 398,095.74 and 173,820.60 is: 239,872.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,475.56 : 398,095.74 = 173,820.60 : x
  2. Step 2: Convert to fraction form
    288,475.56/398,095.74 = 173,820.60/x
  3. Step 3: Cross multiply
    288,475.56x = 398,095.74 × 173,820.60
  4. Step 4: Simplify right side
    288,475.56x = 69,197,240,384.24
  5. Step 5: Solve for x
    x = 69,197,240,384.24/288,475.56
  6. Step 6: Final answer
    x = 239,872.11

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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.