Home / 287,043.75-427,533.46-272,055.51

Finding the Fourth Proportional to 287,043.75, 427,533.46 and 272,055.51

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Solution

The fourth proportional to 287,043.75, 427,533.46 and 272,055.51 is: 405,209.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,043.75 : 427,533.46 = 272,055.51 : x
  2. Step 2: Convert to fraction form
    287,043.75/427,533.46 = 272,055.51/x
  3. Step 3: Cross multiply
    287,043.75x = 427,533.46 × 272,055.51
  4. Step 4: Simplify right side
    287,043.75x = 116,312,832,822.23
  5. Step 5: Solve for x
    x = 116,312,832,822.23/287,043.75
  6. Step 6: Final answer
    x = 405,209.42

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.