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Finding the Fourth Proportional to 462,406.40, 693,609.60 and 146,895.20

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Solution

The fourth proportional to 462,406.40, 693,609.60 and 146,895.20 is: 220,342.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,406.40 : 693,609.60 = 146,895.20 : x
  2. Step 2: Convert to fraction form
    462,406.40/693,609.60 = 146,895.20/x
  3. Step 3: Cross multiply
    462,406.40x = 693,609.60 × 146,895.20
  4. Step 4: Simplify right side
    462,406.40x = 101,887,920,913.92
  5. Step 5: Solve for x
    x = 101,887,920,913.92/462,406.40
  6. Step 6: Final answer
    x = 220,342.80

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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.