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Finding the Fourth Proportional to 210,459.58, 290,529.79 and 134,083.40

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Solution

The fourth proportional to 210,459.58, 290,529.79 and 134,083.40 is: 185,095.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,459.58 : 290,529.79 = 134,083.40 : x
  2. Step 2: Convert to fraction form
    210,459.58/290,529.79 = 134,083.40/x
  3. Step 3: Cross multiply
    210,459.58x = 290,529.79 × 134,083.40
  4. Step 4: Simplify right side
    210,459.58x = 38,955,220,256.63
  5. Step 5: Solve for x
    x = 38,955,220,256.63/210,459.58
  6. Step 6: Final answer
    x = 185,095.97

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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.