Home / 307,890.40-461,835.60-272,898.40

Finding the Fourth Proportional to 307,890.40, 461,835.60 and 272,898.40

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Solution

The fourth proportional to 307,890.40, 461,835.60 and 272,898.40 is: 409,347.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,890.40 : 461,835.60 = 272,898.40 : x
  2. Step 2: Convert to fraction form
    307,890.40/461,835.60 = 272,898.40/x
  3. Step 3: Cross multiply
    307,890.40x = 461,835.60 × 272,898.40
  4. Step 4: Simplify right side
    307,890.40x = 126,034,196,303.04
  5. Step 5: Solve for x
    x = 126,034,196,303.04/307,890.40
  6. Step 6: Final answer
    x = 409,347.60

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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.