Home / 407,056.30-610,475.10-140,898.40

Finding the Fourth Proportional to 407,056.30, 610,475.10 and 140,898.40

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Solution

The fourth proportional to 407,056.30, 610,475.10 and 140,898.40 is: 211,309.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,056.30 : 610,475.10 = 140,898.40 : x
  2. Step 2: Convert to fraction form
    407,056.30/610,475.10 = 140,898.40/x
  3. Step 3: Cross multiply
    407,056.30x = 610,475.10 × 140,898.40
  4. Step 4: Simplify right side
    407,056.30x = 86,014,964,829.84
  5. Step 5: Solve for x
    x = 86,014,964,829.84/407,056.30
  6. Step 6: Final answer
    x = 211,309.75

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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.