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Finding the Fourth Proportional to 123,482.40, 185,223.60 and 40,384.80

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Solution

The fourth proportional to 123,482.40, 185,223.60 and 40,384.80 is: 60,577.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,482.40 : 185,223.60 = 40,384.80 : x
  2. Step 2: Convert to fraction form
    123,482.40/185,223.60 = 40,384.80/x
  3. Step 3: Cross multiply
    123,482.40x = 185,223.60 × 40,384.80
  4. Step 4: Simplify right side
    123,482.40x = 7,480,218,041.28
  5. Step 5: Solve for x
    x = 7,480,218,041.28/123,482.40
  6. Step 6: Final answer
    x = 60,577.20

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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.