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Finding the Fourth Proportional to 210,182.50, 290,050.81 and 114,688.90

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Solution

The fourth proportional to 210,182.50, 290,050.81 and 114,688.90 is: 158,270.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,182.50 : 290,050.81 = 114,688.90 : x
  2. Step 2: Convert to fraction form
    210,182.50/290,050.81 = 114,688.90/x
  3. Step 3: Cross multiply
    210,182.50x = 290,050.81 × 114,688.90
  4. Step 4: Simplify right side
    210,182.50x = 33,265,608,343.01
  5. Step 5: Solve for x
    x = 33,265,608,343.01/210,182.50
  6. Step 6: Final answer
    x = 158,270.11

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1.5x scale

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.