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Finding the Fourth Proportional to 210,630.30, 315,945.45 and 184,386.30

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Solution

The fourth proportional to 210,630.30, 315,945.45 and 184,386.30 is: 276,579.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,630.30 : 315,945.45 = 184,386.30 : x
  2. Step 2: Convert to fraction form
    210,630.30/315,945.45 = 184,386.30/x
  3. Step 3: Cross multiply
    210,630.30x = 315,945.45 × 184,386.30
  4. Step 4: Simplify right side
    210,630.30x = 58,256,012,527.34
  5. Step 5: Solve for x
    x = 58,256,012,527.34/210,630.30
  6. Step 6: Final answer
    x = 276,579.45

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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.