Home / 288,643.30-432,583.34-208,947.60

Finding the Fourth Proportional to 288,643.30, 432,583.34 and 208,947.60

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Solution

The fourth proportional to 288,643.30, 432,583.34 and 208,947.60 is: 313,145.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,643.30 : 432,583.34 = 208,947.60 : x
  2. Step 2: Convert to fraction form
    288,643.30/432,583.34 = 208,947.60/x
  3. Step 3: Cross multiply
    288,643.30x = 432,583.34 × 208,947.60
  4. Step 4: Simplify right side
    288,643.30x = 90,387,249,648.25
  5. Step 5: Solve for x
    x = 90,387,249,648.25/288,643.30
  6. Step 6: Final answer
    x = 313,145.15

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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.