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Finding the Fourth Proportional to 312,890.04, 465,309.72 and 302,925.48

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Solution

The fourth proportional to 312,890.04, 465,309.72 and 302,925.48 is: 450,491.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,890.04 : 465,309.72 = 302,925.48 : x
  2. Step 2: Convert to fraction form
    312,890.04/465,309.72 = 302,925.48/x
  3. Step 3: Cross multiply
    312,890.04x = 465,309.72 × 302,925.48
  4. Step 4: Simplify right side
    312,890.04x = 140,954,170,279.67
  5. Step 5: Solve for x
    x = 140,954,170,279.67/312,890.04
  6. Step 6: Final answer
    x = 450,491.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.