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Finding the Fourth Proportional to 210,276.59, 290,285.84 and 133,871.63

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Solution

The fourth proportional to 210,276.59, 290,285.84 and 133,871.63 is: 184,809.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,276.59 : 290,285.84 = 133,871.63 : x
  2. Step 2: Convert to fraction form
    210,276.59/290,285.84 = 133,871.63/x
  3. Step 3: Cross multiply
    210,276.59x = 290,285.84 × 133,871.63
  4. Step 4: Simplify right side
    210,276.59x = 38,861,037,897.36
  5. Step 5: Solve for x
    x = 38,861,037,897.36/210,276.59
  6. Step 6: Final answer
    x = 184,809.15

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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.