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Finding the Fourth Proportional to 243,039.40, 364,559.10 and 183,990.40

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Solution

The fourth proportional to 243,039.40, 364,559.10 and 183,990.40 is: 275,985.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,039.40 : 364,559.10 = 183,990.40 : x
  2. Step 2: Convert to fraction form
    243,039.40/364,559.10 = 183,990.40/x
  3. Step 3: Cross multiply
    243,039.40x = 364,559.10 × 183,990.40
  4. Step 4: Simplify right side
    243,039.40x = 67,075,374,632.64
  5. Step 5: Solve for x
    x = 67,075,374,632.64/243,039.40
  6. Step 6: Final answer
    x = 275,985.60

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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.