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Finding the Fourth Proportional to 273,075.60, 409,547.75 and 139,887.30

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Solution

The fourth proportional to 273,075.60, 409,547.75 and 139,887.30 is: 209,797.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,075.60 : 409,547.75 = 139,887.30 : x
  2. Step 2: Convert to fraction form
    273,075.60/409,547.75 = 139,887.30/x
  3. Step 3: Cross multiply
    273,075.60x = 409,547.75 × 139,887.30
  4. Step 4: Simplify right side
    273,075.60x = 57,290,529,804.94
  5. Step 5: Solve for x
    x = 57,290,529,804.94/273,075.60
  6. Step 6: Final answer
    x = 209,797.32

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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.