Home / 306,911.02-423,558.50-186,057.40

Finding the Fourth Proportional to 306,911.02, 423,558.50 and 186,057.40

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Solution

The fourth proportional to 306,911.02, 423,558.50 and 186,057.40 is: 256,772.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,911.02 : 423,558.50 = 186,057.40 : x
  2. Step 2: Convert to fraction form
    306,911.02/423,558.50 = 186,057.40/x
  3. Step 3: Cross multiply
    306,911.02x = 423,558.50 × 186,057.40
  4. Step 4: Simplify right side
    306,911.02x = 78,806,190,209.82
  5. Step 5: Solve for x
    x = 78,806,190,209.82/306,911.02
  6. Step 6: Final answer
    x = 256,772.11

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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.