Home / 387,862.02-535,246.38-218,092.50

Finding the Fourth Proportional to 387,862.02, 535,246.38 and 218,092.50

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Solution

The fourth proportional to 387,862.02, 535,246.38 and 218,092.50 is: 300,965.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,862.02 : 535,246.38 = 218,092.50 : x
  2. Step 2: Convert to fraction form
    387,862.02/535,246.38 = 218,092.50/x
  3. Step 3: Cross multiply
    387,862.02x = 535,246.38 × 218,092.50
  4. Step 4: Simplify right side
    387,862.02x = 116,733,221,130.15
  5. Step 5: Solve for x
    x = 116,733,221,130.15/387,862.02
  6. Step 6: Final answer
    x = 300,965.85

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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.