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Finding the Fourth Proportional to 313,501.80, 470,252.70 and 266,262.60

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Solution

The fourth proportional to 313,501.80, 470,252.70 and 266,262.60 is: 399,393.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,501.80 : 470,252.70 = 266,262.60 : x
  2. Step 2: Convert to fraction form
    313,501.80/470,252.70 = 266,262.60/x
  3. Step 3: Cross multiply
    313,501.80x = 470,252.70 × 266,262.60
  4. Step 4: Simplify right side
    313,501.80x = 125,210,706,559.02
  5. Step 5: Solve for x
    x = 125,210,706,559.02/313,501.80
  6. Step 6: Final answer
    x = 399,393.90

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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.