Home / 307,742.49-424,755.50-180,459.09

Finding the Fourth Proportional to 307,742.49, 424,755.50 and 180,459.09

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Solution

The fourth proportional to 307,742.49, 424,755.50 and 180,459.09 is: 249,075.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,742.49 : 424,755.50 = 180,459.09 : x
  2. Step 2: Convert to fraction form
    307,742.49/424,755.50 = 180,459.09/x
  3. Step 3: Cross multiply
    307,742.49x = 424,755.50 × 180,459.09
  4. Step 4: Simplify right side
    307,742.49x = 76,650,990,100.20
  5. Step 5: Solve for x
    x = 76,650,990,100.20/307,742.49
  6. Step 6: Final answer
    x = 249,075.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.