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Finding the Fourth Proportional to 243,465.80, 365,237.93 and 74,986.07

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Solution

The fourth proportional to 243,465.80, 365,237.93 and 74,986.07 is: 112,491.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,465.80 : 365,237.93 = 74,986.07 : x
  2. Step 2: Convert to fraction form
    243,465.80/365,237.93 = 74,986.07/x
  3. Step 3: Cross multiply
    243,465.80x = 365,237.93 × 74,986.07
  4. Step 4: Simplify right side
    243,465.80x = 27,387,755,346.91
  5. Step 5: Solve for x
    x = 27,387,755,346.91/243,465.80
  6. Step 6: Final answer
    x = 112,491.18

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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.