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Finding the Fourth Proportional to 187,420.80, 280,693.80 and 183,662.40

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Solution

The fourth proportional to 187,420.80, 280,693.80 and 183,662.40 is: 275,064.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,420.80 : 280,693.80 = 183,662.40 : x
  2. Step 2: Convert to fraction form
    187,420.80/280,693.80 = 183,662.40/x
  3. Step 3: Cross multiply
    187,420.80x = 280,693.80 × 183,662.40
  4. Step 4: Simplify right side
    187,420.80x = 51,552,896,973.12
  5. Step 5: Solve for x
    x = 51,552,896,973.12/187,420.80
  6. Step 6: Final answer
    x = 275,064.97

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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.