Home / 356,038.08-491,299.20-212,769.60

Finding the Fourth Proportional to 356,038.08, 491,299.20 and 212,769.60

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Solution

The fourth proportional to 356,038.08, 491,299.20 and 212,769.60 is: 293,602.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,038.08 : 491,299.20 = 212,769.60 : x
  2. Step 2: Convert to fraction form
    356,038.08/491,299.20 = 212,769.60/x
  3. Step 3: Cross multiply
    356,038.08x = 491,299.20 × 212,769.60
  4. Step 4: Simplify right side
    356,038.08x = 104,533,534,264.32
  5. Step 5: Solve for x
    x = 104,533,534,264.32/356,038.08
  6. Step 6: Final answer
    x = 293,602.12

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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.