Home / 307,461.12-461,178.40-105,075.30

Finding the Fourth Proportional to 307,461.12, 461,178.40 and 105,075.30

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Solution

The fourth proportional to 307,461.12, 461,178.40 and 105,075.30 is: 157,608.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,461.12 : 461,178.40 = 105,075.30 : x
  2. Step 2: Convert to fraction form
    307,461.12/461,178.40 = 105,075.30/x
  3. Step 3: Cross multiply
    307,461.12x = 461,178.40 × 105,075.30
  4. Step 4: Simplify right side
    307,461.12x = 48,458,456,164.94
  5. Step 5: Solve for x
    x = 48,458,456,164.94/307,461.12
  6. Step 6: Final answer
    x = 157,608.40

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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.