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Finding the Fourth Proportional to 210,191.63, 290,064.51 and 134,740.13

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Solution

The fourth proportional to 210,191.63, 290,064.51 and 134,740.13 is: 185,941.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,191.63 : 290,064.51 = 134,740.13 : x
  2. Step 2: Convert to fraction form
    210,191.63/290,064.51 = 134,740.13/x
  3. Step 3: Cross multiply
    210,191.63x = 290,064.51 × 134,740.13
  4. Step 4: Simplify right side
    210,191.63x = 39,083,328,335.46
  5. Step 5: Solve for x
    x = 39,083,328,335.46/210,191.63
  6. Step 6: Final answer
    x = 185,941.42

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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.