Home / 220,897.10-331,345.65-190,829.90

Finding the Fourth Proportional to 220,897.10, 331,345.65 and 190,829.90

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Solution

The fourth proportional to 220,897.10, 331,345.65 and 190,829.90 is: 286,244.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,897.10 : 331,345.65 = 190,829.90 : x
  2. Step 2: Convert to fraction form
    220,897.10/331,345.65 = 190,829.90/x
  3. Step 3: Cross multiply
    220,897.10x = 331,345.65 × 190,829.90
  4. Step 4: Simplify right side
    220,897.10x = 63,230,657,254.94
  5. Step 5: Solve for x
    x = 63,230,657,254.94/220,897.10
  6. Step 6: Final answer
    x = 286,244.85

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1.5x scale

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.