Home / 445,932.40-668,898.60-146,459.20

Finding the Fourth Proportional to 445,932.40, 668,898.60 and 146,459.20

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Solution

The fourth proportional to 445,932.40, 668,898.60 and 146,459.20 is: 219,688.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,932.40 : 668,898.60 = 146,459.20 : x
  2. Step 2: Convert to fraction form
    445,932.40/668,898.60 = 146,459.20/x
  3. Step 3: Cross multiply
    445,932.40x = 668,898.60 × 146,459.20
  4. Step 4: Simplify right side
    445,932.40x = 97,966,353,837.12
  5. Step 5: Solve for x
    x = 97,966,353,837.12/445,932.40
  6. Step 6: Final answer
    x = 219,688.80

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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.