Home / 369,851.36-510,268.08-208,686.56

Finding the Fourth Proportional to 369,851.36, 510,268.08 and 208,686.56

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Solution

The fourth proportional to 369,851.36, 510,268.08 and 208,686.56 is: 287,915.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,851.36 : 510,268.08 = 208,686.56 : x
  2. Step 2: Convert to fraction form
    369,851.36/510,268.08 = 208,686.56/x
  3. Step 3: Cross multiply
    369,851.36x = 510,268.08 × 208,686.56
  4. Step 4: Simplify right side
    369,851.36x = 106,486,090,293.01
  5. Step 5: Solve for x
    x = 106,486,090,293.01/369,851.36
  6. Step 6: Final answer
    x = 287,915.91

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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.