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Finding the Fourth Proportional to 440,870.39, 661,492.80 and 240,957.21

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Solution

The fourth proportional to 440,870.39, 661,492.80 and 240,957.21 is: 361,538.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,870.39 : 661,492.80 = 240,957.21 : x
  2. Step 2: Convert to fraction form
    440,870.39/661,492.80 = 240,957.21/x
  3. Step 3: Cross multiply
    440,870.39x = 661,492.80 × 240,957.21
  4. Step 4: Simplify right side
    440,870.39x = 159,391,459,523.09
  5. Step 5: Solve for x
    x = 159,391,459,523.09/440,870.39
  6. Step 6: Final answer
    x = 361,538.14

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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.