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Finding the Fourth Proportional to 398,148.80, 597,223.20 and 131,950.40

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Solution

The fourth proportional to 398,148.80, 597,223.20 and 131,950.40 is: 197,925.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,148.80 : 597,223.20 = 131,950.40 : x
  2. Step 2: Convert to fraction form
    398,148.80/597,223.20 = 131,950.40/x
  3. Step 3: Cross multiply
    398,148.80x = 597,223.20 × 131,950.40
  4. Step 4: Simplify right side
    398,148.80x = 78,803,840,129.28
  5. Step 5: Solve for x
    x = 78,803,840,129.28/398,148.80
  6. Step 6: Final answer
    x = 197,925.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.