Home / 287,267.02-430,962.28-143,251.32

Finding the Fourth Proportional to 287,267.02, 430,962.28 and 143,251.32

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Solution

The fourth proportional to 287,267.02, 430,962.28 and 143,251.32 is: 214,907.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,267.02 : 430,962.28 = 143,251.32 : x
  2. Step 2: Convert to fraction form
    287,267.02/430,962.28 = 143,251.32/x
  3. Step 3: Cross multiply
    287,267.02x = 430,962.28 × 143,251.32
  4. Step 4: Simplify right side
    287,267.02x = 61,735,915,480.21
  5. Step 5: Solve for x
    x = 61,735,915,480.21/287,267.02
  6. Step 6: Final answer
    x = 214,907.77

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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.