Home / 253,075.04-349,229.85-139,890.50

Finding the Fourth Proportional to 253,075.04, 349,229.85 and 139,890.50

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Solution

The fourth proportional to 253,075.04, 349,229.85 and 139,890.50 is: 193,041.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,075.04 : 349,229.85 = 139,890.50 : x
  2. Step 2: Convert to fraction form
    253,075.04/349,229.85 = 139,890.50/x
  3. Step 3: Cross multiply
    253,075.04x = 349,229.85 × 139,890.50
  4. Step 4: Simplify right side
    253,075.04x = 48,853,938,331.43
  5. Step 5: Solve for x
    x = 48,853,938,331.43/253,075.04
  6. Step 6: Final answer
    x = 193,041.31

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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.