Home / 386,464.53-533,075.67-279,192.18

Finding the Fourth Proportional to 386,464.53, 533,075.67 and 279,192.18

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Solution

The fourth proportional to 386,464.53, 533,075.67 and 279,192.18 is: 385,107.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,464.53 : 533,075.67 = 279,192.18 : x
  2. Step 2: Convert to fraction form
    386,464.53/533,075.67 = 279,192.18/x
  3. Step 3: Cross multiply
    386,464.53x = 533,075.67 × 279,192.18
  4. Step 4: Simplify right side
    386,464.53x = 148,830,558,412.26
  5. Step 5: Solve for x
    x = 148,830,558,412.26/386,464.53
  6. Step 6: Final answer
    x = 385,107.94

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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.