Home / 307,357.46-461,036.20-82,718.40

Finding the Fourth Proportional to 307,357.46, 461,036.20 and 82,718.40

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Solution

The fourth proportional to 307,357.46, 461,036.20 and 82,718.40 is: 124,077.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,357.46 : 461,036.20 = 82,718.40 : x
  2. Step 2: Convert to fraction form
    307,357.46/461,036.20 = 82,718.40/x
  3. Step 3: Cross multiply
    307,357.46x = 461,036.20 × 82,718.40
  4. Step 4: Simplify right side
    307,357.46x = 38,136,176,806.08
  5. Step 5: Solve for x
    x = 38,136,176,806.08/307,357.46
  6. Step 6: Final answer
    x = 124,077.60

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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.